This Google patent application had us as 'laser keyboard'

Google's laser keyboard patent application.

(Credit:
U.S. Patent and Trade Office)

Among the challenges developers will face when they start building for Google Glass this year is a basic one: how do users communicate with the device?

Glass has a microphone, and a button for taking pictures. But what if the user is in a noisy environment, or wants to create a long message? Is there any way to include a keyboard?

The answer is yes, according to an intriguing new patent application filed today with the U.S. Patent and Trademark Office. Patent 20130016070, "Methods and Systems for a Virtual Input Device," shows a version of glass that includes a laser projector in the arm of the glasses. The glasses project a keyboard on to the hand of the user, who can than use his body as a touch screen.

As noticed by Unwired View, the patent describes a use in which the glasses' camera interprets a user's gestures, so that they can accept input both via tapping virtual keys and by moving the hand.

It's only a patent application, of course, and there's no telling whether the ideas described will ever make it into a product. But it does show that Google engineers are thinking hard about the Glass' input problem, recognizing that for wearable computing to go mainstream it will likely need to expand beyond voice control. Laser-projected keyboards could be one way to make that happen.

The laser keyboard projected on to the hand, communicating back to the glasses' camera using gestures.

(Credit:
U.S. Patent and Trade Office)

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13 home buying tips for 2013

(MoneyWatch) Although housing prices started to rebound last year and are expected to continue rising in 2013, it's still a buyer's market. Prices remain 30 percent below their peak before the housing crash and mortgage rates hovering at all-time lows. If you are ready to jump in to the real estate market, here are 13 house-hunting tips for 2013.

1. Run the numbers. Put together a financial plan to determine whether you can really afford to buy. After all, just because it's a good time to purchase a home doesn't mean it's a good time for YOU to buy. It's important to understand how much home you can afford and whether home ownership might preclude you from addressing other important financial issues in your life.

2. Save 20 percent for a down payment. I'm not a huge fan of putting down less than that amount (although the Federal Housing Administration allows it). Keep your downpayment fund in cash or cash equivalent accounts, so that market movements don't thwart your plans.

3. Use this great "rent vs. buy" calculator from the New York Times. Renting might still be the better deal in your area.

4. Be an informed buyer. You're not going to buy a house simply because there's a pretty photo posted online, but you can conduct a lot of price research. That said, there's nothing better than talking to people in the neighborhood for "on the ground" intelligence.

5. Obtain a copy of your credit report. If you haven't done so in a while, go to AnnualCreditReport.com and request your free copy. It's important that you correct any errors on the report before you start the mortgage process.

6. Get pre-approved for a mortgage. Pre-approval is a good gut check on your price range for a home. Gone are the days that banks will fork over cash to anyone with a heartbeat. The best way to start is to ask friends for referrals from mortgage brokers and to shop around with banks and credit unions. Make sure to compare apples to apples and to ask the broker about your total costs to you at closing. You should also know that once you actually find a home, the mortgage process is on the same pain level as a root canal, only it requires more patience and there's no Novocain. You'll need to dig up tons of paperwork and fair warning -- there will be multiple requests for even more documents as you move toward closing. Eventually, you will need "commitment letter," which details the terms of your loan approval.

7. Find an agent. As much as everyone complains about realtors, I still think that it's tough to go through the home buying process alone. In some markets, buyers' brokers are available, but the most important qualities in brokers are honesty, experience, good connections with other agents, and good referrals from buyers like you. Remember that most agents represent the seller, not the buyer.

8. Hire a real estate attorney. This is a major transaction in your life, so don't try to save money when it comes to legal fees. Even if your mortgage company provides a lawyer, hire your own to help draft all documents and to ensure that your interests are being represented at every step of the process.

9. Get an appraisal. An appraisal will determine the market value of the property and ultimately will be used by your lender to determine the amount of your loan. You have a legal right to get a copy of this and will want a copy for your records.

10. Schedule a home inspection. Think you've found your dream house? Maybe, but unless you have an engineer walk through the premises with you, you might be buying a new roof in a couple of years. Don't get freaked out if a problem arises during the inspection; it can often be addressed with a simple adjustment in price. It's imperative to protect yourself, so don't blow off this important step.

11. Start with a fair offer. The offer should be based on similar houses sold in the neighborhood in the past six months. Your agent will help you with the process, but the offer should include the price you're willing to pay for the house, your financing terms and contingencies such as specifying what will happen if any problems come up during the inspection.

12. Purchase homeowners insurance. If you are a life-long renter, this can be an eye-opener in terms of cost. Make sure that you understand the difference between insuring the structure and insuring the contents. And if you are buying property that is close to water, make sure that you have an agent who can help you enroll in the national flood insurance program.

13. Review your HUD statement BEFORE closing. The government document provides basic details about the involved parties and a lot of numbers. Mistakes do occur, which is why it is vital that you review the statement and confirm that everything is correct.

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Obama Unveils Sweeping Plan to Curb Gun Violence

Flanked by four children from across the country, President Obama today unveiled a sweeping plan to curb gun violence in America through an extensive package of legislation and executive actions not seen since the 1960s.

Obama is asking Congress to implement mandatory background checks for all gun purchases, including private sales; reinstate a ban on some assault-style weapons; ban high-capacity magazines holding more than 10 rounds; and crackdown on illicit weapons trafficking.

The president's proposal also includes new initiatives for school safety, including a call for more federal aid to states for hiring so-called school resource officers (police), counselors and psychologists, and improved access to mental health care.

Obama also initiated 23 executive actions on gun violence, policy directives not needing congressional approval. Among them is a directive to federal agencies to beef up the national criminal background-check system and a memorandum lifting a freeze on gun violence research at the Centers for Disease Control and Prevention.

"I intend to use whatever weight this office holds to make them a reality," Obama said at a midday news conference. "If there's even one thing that we can do to reduce this violence, if there's even one life that can be saved, then we have an obligation to try.

"And I'm going to do my part."

The announcement comes one month after a mass shooting at Sandy Hook Elementary School in Newtown, Conn., left 26 dead, including 20 children. Obama called it the worst moment of his presidency and promised "meaningful action" in response.

Maqndel Ngan/AFP/Getty Images

Andrew Cuomo Signs New York Gun Control Law, Obama Readies Federal Plan Watch Video

'The View' on NRA Shooting App: Think It Out Watch Video

The proposals were the work of an Obama-appointed task force, led by Vice President Joe Biden, that held 22 meetings on gun violence in the past three weeks. The group received input from more than 220 organizations and dozens of elected officials, a senior administration official said.

As part of the push, Obama nominated a new director for the Bureau of Alcohol, Tobacco and Firearms, which leads enforcement of federal gun laws and has been without a confirmed director for six years. The president appointed acting director Todd Jones, the U.S. attorney for Minnesota, to the post, if the Senate confirms him.

The administration's plan calls for aid to states for the hiring of more school resource officers, counselors and psychologists. Obama also directed the Department of Education to ensure all schools have improved emergency-response plans.

He also called on Congress to make it illegal to possess or transfer armor-piercing bullets; it's now only illegal to produce them.

"To make a real and lasting difference, Congress must act," Obama said. "And Congress must act soon."

Officials said some of the legislative measures Obama outlined could be introduced on Capitol Hill next week. The pricetag for Obama's entire package is $500 million, the White House said.

"House committees of jurisdiction will review these recommendations," a spokesman for House Speaker John Boehner said in response to Obama's announcement. "And if the Senate passes a bill, we will also take a look at that."

The proposals are already being met with stiff opposition from gun rights advocates, led by the National Rifle Association, which overnight released a scathing ad attacking the president as an "elitist hypocrite."

"Are the president's kids more important than yours?" the narrator of the NRA ad says. "Then why is he skeptical about putting armed security in our schools, when his kids are protected by armed guards at their school?"

Obama has questioned the value of placing more armed guards at schools around the country, although his proposal does call for placement of more police officers at public schools. The NRA opposes most of the other gun restrictions Obama has proposed.

"Keeping our children and society safe remains our top priority," the NRA said in a statement after Obama's announcement.

"Attacking firearms and ignoring children is not a solution to the crisis we face as a nation," the group said. "Only honest, law-abiding gun owners will be affected and our children will remain vulnerable to the inevitability of more tragedy."

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Dozens held after Islamists attack Algerian gas field

ALGIERS (Reuters) - Islamist militants attacked a gas field in Algeria on Wednesday, claiming to have kidnapped up to 41 foreigners including seven Americans in a dawn raid in retaliation for France's intervention in Mali, according to regional media reports.

The raiders were also reported to have killed three people, including a Briton and a French national.

An al Qaeda affiliated group said the raid had been carried out because of Algeria's decision to allow France to use its air space for attacks against Islamists in Mali, where French forces have been in action against al Qaeda-linked militants since last week.

The attack in southern Algeria also raised fears that the French action in Mali could prompt further Islamist revenge attacks on Western targets in Africa, where al Qaeda in the Islamic Maghreb (AQIM) operates across borders in the Sahara desert, and in Europe.

AQIM said it had carried out Wednesday's raid on the In Amenas gas facility in OPEC member Algeria, Mauritania's ANI news agency reported.

The Algerian interior ministry said: "A terrorist group, heavily armed and using three vehicles, launched an attack this Wednesday at 5 a.m. against a Sonatrach base in Tigantourine, near In Amenas, about 100 km (60 miles) from the Algerian and Libyan border."

"The Algerian authorities will not respond to the demands of the terrorists and will not negotiate," Interior Minister Daho Ould Kablia was quoted as saying by official news agency APS.

The gas field is operated by a joint venture including BP, Norwegian oil firm Statoil and Algerian state company Sonatrach.

ARMED MEN

BP said armed men were still occupying facilities at the gas field, which produces 9 billion cubic meters of gas a year(160,000 barrels of oil equivalent per day), more than a tenth of the country's overall gas output, and 60,000 barrels a day of condensate.

"The site was attacked and occupied by a group of unidentified armed people at about 0500 UK time. Contact with the site is extremely difficult, but we understand that armed individuals are still occupying the In Amenas operations site," it said.

A spokesman for BP said it usually had fewer than 20 people working at the site but would not be drawn on whether there were any talks with the hostage takers. He said: "Obviously we are doing everything we can to make sure our people are okay."

APS said a Briton and an Algerian security guard had been killed and seven people were injured. A French national was also killed in the attack, a local source said.

Also among those reported kidnapped by various sources were five Japanese nationals working for the Japanese engineering firm JGC Corp, a French national, an Austrian, an Irishman, and a number of Britons.

The U.S. State Department said it believed some U.S. citizens were also among the hostages, while Norwegian Prime Minister Jens Stoltenberg said 13 employees of Statoil, a minority shareholder in the gas venture, were being held.

A member of an Islamist group styling itself the "Blood Battalion" was quoted by Mauritanian media as saying that five of the hostages were being held at the gas facility and 36 were in a housing area. APS said the Islamist raiders had freed Algerians working at the gas facility, though Regis Arnoux, head of French company CIS Catering, told JDD weekly newspaper that 150 Algerian employees of his company were being held at the site.

"The operation was in response to the blatant interference by Algeria and the opening of its air space to French aircraft to bomb northern Mali," the Islamist spokesman told Mauritania's ANI news agency.

ANI, which has regular direct contact with Islamists, said that fighters under the command of Mokhtar Belmokhtar were holding the foreigners.

Interior Minister Kablia also told APS that Belmokhtar was leading the group of about 20 individuals, whom he said were not from Mali, Libya or "any other neighboring state".

Belmokhtar, dubbed by French intelligence as "the uncatchable", for years commanded al Qaeda fighters in the Sahara before setting up his own armed Islamist group late last year after an apparent fallout with other militant leaders.

The Algerian army was in the area of the gas facility, according to French and Algerian sources.

ANI reported that the Islamists said they were surrounded by Algerian forces and warned that any attempt to free the hostages would lead to a "tragic end". One of the hostage takers told ANI that the perimeter of the site had been mined.

SECURITY IMPLICATIONS

The attack was the first time in years that Islamist militants are known to have launched an attack on an Algerian energy facility.

The attack could have implications for security across the whole of Algeria's energy sector, which supplies about a quarter of Europe's natural gas imports and exports millions of barrels of crude oil each year.

Such an attack would require a large and heavily armed insurgent force with a degree of freedom to move around, all elements that al Qaeda has not previously had.

However, the conflict in neighboring Libya in 2011 changed the balance of force. Security experts say al Qaeda was able to obtain arms, including heavy weapons, from the looted arsenals of former leader Muammar Gaddafi.

The five Japanese work for the engineering firm JGC Corporation, Jiji news agency reported, quoting company officials. JGC has a deal with Sonatrach-BP-Statoil Association for work in gas production at In Amenas.

A reporter for Japan's NHK television managed to call a JGC worker in Algeria.

The worker said he got a phone call from a colleague at the gas field. "It was around 6 a.m. this morning. He said that he had been hearing gunshots for about 20 minutes. I wasn't able to get through to him since."

French troops launched their first ground operation against Islamist rebels in Mali on Wednesday in an action to dislodge from a strategic town al Qaeda-linked fighters who have resisted six days of air strikes.

(Additional reporting by Catherine Bremer and John Irish in Paris, Laurent Prieur in Nouakchott, Andrew Osborn in London, Balazs Koranyi in Oslo, Antoni Slodkowski in Tokyo, Raissa Kasolowsky in Abu Dhabi and Christian Lowe in Warsaw; Editing by Giles Elgood and Will Waterman)

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Syria blasts kill 22 as students mourn campus dead

DAMASCUS: Twin car bombs killed at least 22 people in the Syrian city of Idlib on Wednesday as universities nationwide held a day of mourning for 87 people killed in explosions on the student campus in second city Aleppo.

The bombings had the hallmarks of operations staged by the jihadist Al-Nusra Front, a rebel group with a strong presence on the ground in northwestern Syria and blacklisted by the United States as a "terrorist" organisation.

"The first explosion took place in Al-Ziraa Square and the second explosion took place in Al-Mutlaq Square, killing 22 civilians and wounding 30," the state SANA news agency reported, blaming "terrorists" for the blasts.

Idlib city remains under the control of forces loyal to President Bashar al-Assad but most of the rest of the northwestern province on the border with Turkey is in the hands of rebels fighting to oust him.

The Syrian Observatory for Human Rights gave a higher toll of 24 dead and said most were soldiers. The Britain-based watchdog said there were three bombs in all and that many of the wounded were in critical condition.

"After taking the airbase at Taftanaz (on January 11), the city of Idlib has become the rebels' new target," Observatory directory Rami Abdel Rahman told AFP.

The Observatory said the death toll from Tuesday's blasts at Aleppo University could top 100 as many of the wounded were critically hurt, which would make it one of the bloodiest attacks of the 22-month conflict.

Washington on Wednesday condemned the "despicable attack," blaming regime air attacks.

"According to eyewitnesses at the scene, regime planes launched aerial strikes on university facilities," State Department spokeswoman Victoria Nuland told journalists.

No one has claimed responsibility for the explosions, with the government and rebels blaming each other.

Opposition activists said government jets carried out an air strike, but the army said rebels fired rockets at the campus, in a government-controlled area of the battleground northern city.

"The General Command of the Army sees in the targeting of academics, colleges and universities further proof of the killers' dark methods, and of an ideology that belongs in the past," a military statement said.

Higher Education Minister Mohammed Yahia Moalla called a nationwide "day of mourning" on Wednesday, state television reported.

In a letter addressed to UN Secretary General Bank Ki-moon and the UN Security Council, the foreign ministry called on the international community to "denounce the terrorist massacre."

Alluding to Western support for France's military intervention against Islamist rebels in Mali, the ministry said "some countries in the world are practising two-faced politics, by supporting terrorism in Syria and denouncing it in others."

Ban sent his condolences on Wednesday to the families of those killed and said "deliberate targeting of civilians and civilian targets constitutes a war crime."

He stressed the "urgent need for a peaceful political solution that ends the violence and meets the democratic aspirations of the Syrian people."

Near the capital, the army sent reinforcements to the town of Daraya as warplanes and rockets bombarded the rebel enclave, the Observatory said.

"The army's assault is insanely violent. The shelling is continuous; it has been so intense in the past hours. There are many injured people," said local activist Abu Kinan.

More than 60,000 people have been killed in Syria since the uprising against Assad's rule erupted in March 2011, according to the United Nations.

The Observatory said 103 people died in violence nationwide on Wednesday, including 44 civilians.

Meanwhile, the World Food Programme said that it would quickly try to distribute aid to an additional one million Syrians after Damascus gave the green light for it to work with local aid organisations to reach more of those in need.

Previously most of the UN agency's food aid was delivered through the Syrian Arab Red Crescent, which was overstretched and only able to provide help to some 1.5 million Syrians a month.

- AFP/jc

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Get a $117 Mac app bundle for free

Eight Mac apps for zero dollars? It's true, I tell ya.

(Credit:
Screenshot by Rick Broida/CNET)

Let's be honest: Mac users don't usually get a lot of freebies.

Sure, there are software bundles from time to time, but usually they cost around $50 -- nothing free about that.

That's what makes this deal so special: it doesn't cost a dime. For the next two weeks, StackSocial is offering the Mac Freebie Bundle, a collection of eight Mac apps with a combined value of $117 -- and a total cost to you of $0.

What's included? Here's the rundown:

• Clipboard manager ClipBuddy.


• Icon organizer IconBox2.


• Image tweaker Image Smith.


• Screen-capture tool Ondesoft Screen Capture.


• Text-art generator Sweetie.


• Typing tutor Type Fu.


• Video converter VidConvert.


• Wallpaper manager Wallpaper Wizard.

Remember, there are no small apps, only small minds! Or something like that. Granted, these aren't productivity powerhouses, but they're useful tools for an unbeatable price. What's not to like?

While you're there, you might as well enter StackSocial's iPad Mini contest. I'm loathe to spend $329 (minimum) on a Mini, but I'd gladly take one for free.

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Facebook announces new site search feature

Facebook announced that it is launching a search engine for the social network called "graph search."

At a press event in Menlo Park, Calif., Tuesday CEO Mark Zuckerberg said the social network is launching a search engine that will run inside of Facebook.

"What is graph search? It's not web search," Zuckerberg told reporters.

During a comparison of graph search with a web search, Zuckerberg demonstrated that graph search will deliver answers to questions like, "Who are my friends that live in San Francisco?"

Graph search focuses on people, photos, places and interests. Users can type a question into the search bar on Facebook and ask questions. An option to refine searches is also provided.

Zuckerberg showed off other searched like: "Mexican restaurants in Palo Alto, Calif, my friends have been to" and "Photos of me and  Priscilla." The search is in still in its beta phase.

Facebook users can search for specific photos, like "photos of Berlin, German from 1989," "photos of my friends before 1990" or "photos I've liked."

Zuckerberg also touched on privacy concerns and pointed out to privacy shortcuts, which are located at the top right section of the website. The setting lets users see what photos have been uploaded, tagged and hidden from Timeline.

Facebook Graph Search is in the early stages of development. Because of a partnership with Bing, any results that cannot be found on Facebook will pull from Bing.com.

The social network was previously rumored to unveil a "Facebook phone," even though Zuckerberg has publically shot down speculation that Facebook was planning to build a smartphone.

"It is so clearly the wrong strategy for us," Zuckerberg said at a September technology conference in his first public interview after Facebook's May initial public offering. "It doesn't move the needle for us."

Facebook's graph search is in closed beta. Users who want to sign up for the test can join the waiting list on Facebook's website.

The Menlo Park, Calif.-based company reports 1 billion monthly active users, 240 billion photos and 1 trillion connections.

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Secret Revealed: Facebook Announces New Tool

How you search Facebook is about to change. In fact, just the act of searching Facebook is probably about to start.

Facebook is trying to give Google a run for its money, with a new product called "Graph Search." It turns some of the personal information people have shared on Facebook into a powerful searchable database.

For the social network's 170 million users in the U.S., it's bound to change the way people interact with their Facebook friends. It also could mean lots more time wasted at work.

Facebook allowed ABC News "Nightline" behind the scenes ahead of today's product launch, an event shrouded in secrecy and rife with speculation. Company officials had sent out a tantalizingly vague invitation: "Come and see what we're building."

IMAGES: Screenshots of Graph Search and the offices where it was built

CEO Mark Zuckerberg has long wanted to develop a social search engine, even hinting back in September that one might be in the works. The new feature gives users the ability to easily search across the network and their friends' information. Company officials say they believe it has the potential to transform the way people use Facebook.

Graph Search: What Is It?
Until now, the search bar you saw when you logged in to your Facebook page wasn't very powerful. You could only search for Timelines -- your friends' pages, other peoples' public pages and business or product pages.

But now, after close to a year and a half of development, the new "Graph Search" will allow you to search and discover more about your friends and other information that's been put on the world's largest social site.

Inside the Crucial 24 Hours Before Facebook's Graph Search Launch: Watch Tonight at 12:35 a.m. on ABC News "Nightline"

The new tool, available only to a limited set of U.S. users at first, turns key information that nearly a billion people have shared on the site -- including photos, places, and things they "like" -- into a searchable database tailored to your individual social network.

The new tool allows you to search across your friends' Timelines, without having to go to each of their Timeline pages to find out if they like a specific place or thing.

"I can just type in a short, simple phrase, like friends who like soccer and live nearby," Facebook product manager Kate O'Neill, told ABC News "Nightline" in an exclusive behind-the-scenes interview. "And now I'm getting the exact group of people that I'm looking for, so I can play soccer and ask them if they want to kick the ball around with me after work." O'Neill was able to narrow down the search in a demonstration only to show women.

MORE: Guide to Facebook's New Privacy Settings

The tool can search your friends' publicly shared interests, photos, places and connections. O'Neill showed ABC News how you can search for different musical artists and see which of your friends like them. She also showed how you can search a company and see which of your friends, or friends of your friends, work there. Additionally, you can search for photos of a specific place -- like Big Sur -- and the Graph Search will return images your friends might have taken of the location.

Right now, you can't search for things that were shared in a Timeline post or an event. However, O'Neill confirmed that this would be added to Graph Search later.

Privacy and Opting Out
The new product raises obvious privacy questions. Will personal information now pop up in the Graph Search, even if you never wanted to share it? How about those photos you never wanted to have on Facebook in the first place, or the ones you thought you were sharing only with your close friends?

"[Privacy] is something, of course, we care a lot about, and so from the very beginning we made it so that you can only search for the things that you can already see on Facebook," Tom Stocky, one of the lead Graph Search senior engineers, told "Nightline."

Stocky also pointed ABC News to Facebook's recent privacy tool changes, which allow you better to see what personal information your friends and others can see on Facebook. O'Neill showed the new Activity Log tools as well as the photo "untag" tool, which lets you contact others who might have a photo of you posted that you'd wish they'd take down.

When asked if users can opt out of the new search in general, Stocky said that they can choose to change the privacy settings on each of their pieces of content.

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France to stay in Mali until stability restored

BAMAKO/DUBAI (Reuters) - France will end its intervention in Mali only once stability has returned to the West African country, French President Francois Hollande said on Tuesday, raising the prospects of a costly, drawn-out operation against al Qaeda-linked rebels.

Paris has poured hundreds of soldiers into Mali and carried out air raids since Friday in the northern half of the country, which Western and regional states fear could become a base for attacks by Islamist militants in Africa and Europe.

Thousands of African troops are due to take over the offensive but regional armies are scrambling to accelerate the operation - initially not expected for months and brought forward by France's bombing campaign aimed at stopping a rebel advance on a strategic town last week.

"We have one goal. To ensure that when we leave, when we end our intervention, Mali is safe, has legitimate authorities, an electoral process and there are no more terrorists threatening its territory," Hollande told a news conference during a visit to the United Arab Emirates.

Foreign Minister Laurent Fabius, accompanying Hollande, said the offensive against the Malian rebels could take some time, and the current French level of involvement could last weeks. Elections, however, would take months to organize.

French aircraft earlier hit rebels with fresh air strikes and a column of dozens of French armored vehicles rumbled into the dusty riverside capital of Bamako overnight, bringing to about 750 the number of French troops in Mali.

Paris has said it plans to deploy 2,500 soldiers in its former colony to bolster the Malian army and work with the intervention force provided by West African states.

West African defense chiefs met in Bamako on Tuesday to approve plans for speeding up the deployment of 3,300 regional troops, foreseen in a United Nations-backed intervention plan to be led by Africans.

Nigeria pledged to deploy soldiers within 24 hours and Belgium said it was sending transport planes and helicopters to help, but West Africa's armies need time to become operational.

Mali's north, a vast and inhospitable area of desert and rugged mountains the size of Texas, was seized last year by an Islamist alliance combining al Qaeda's north African wing AQIM with splinter group MUJWA and the home-grown Ansar Dine rebels.

Any delay in following up on the French air bombardments of Islamist bases and fuel depots with a ground offensive could allow the insurgents to slip away into the desert and mountains, regroup and counter-attack.

The rebels, who French officials say are mobile and well-armed, have shown they can hit back, dislodging government forces from Diabaly, 350 km (220 miles) from Bamako on Monday.

Residents said the town was still under Islamist control on Tuesday despite a number of air strikes that shook houses.

An eye witness near Segou, to the south, told Reuters he had seen 20 French Special Forces soldiers driving toward Diabaly.

Malians have largely welcomed the French intervention, having seen their army suffer a series of defeats by the rebels.

"With the arrival of the French, we have started to see the situation on the front evolve in our favor," said Aba Sanare, a resident of Bamako.

QUESTIONS OVER READINESS

Aboudou Toure Cheaka, a senior regional official in Bamako, said the West African troops would be on the ground in a week.

The original timetable for the 3,300-strong U.N.-sanctioned African force - to be backed by western logistics, money and intelligence services - did not initially foresee full deployment before September due to logistical constraints.

Senegal, Burkina Faso, Niger, Nigeria and Guinea have all offered troops. Col. Mohammed Yerima, spokesman for Nigeria's defense ministry, said the first 190 soldiers would be dispatched within 24 hours.

But Nigeria, which is due to lead the mission, has already cautioned that even if some troops arrive in Mali soon, their training and equipping will take more time.

Sub-Saharan Africa's top oil producer, which already has peacekeepers in Sudan's Darfur and is fighting a bloody and difficult insurgency at home against Islamist sect Boko Haram, could struggle to deliver on its troop commitment of 900 men.

One senior government adviser in Nigeria said the Mali deployment was stretching the country's military.

"The whole thing's a mess. We don't have any troops with experience of those extreme conditions, even of how to keep all that sand from ruining your equipment. And we're facing battle-hardened guys who live in those dunes," the adviser said, asking not to be named because of the sensitivity of the subject.

FRENCH LINING UP SUPPORT

France, which has repeatedly said it has abandoned its role as the policeman of its former African colonies, said on Monday that the U.S., Canada, Denmark and Germany had also offered logistical support.

Fabius has said Gulf Arab states would help the Mali campaign while Belgium said on Tuesday it would send two C130 transport planes and two medical helicopters to Mali following a request from Paris.

A meeting of donors for the operation was expected to be held in Addis Ababa at the end of January.

Security experts have warned that the multinational intervention in Mali, couched in terms of a campaign by governments against "terrorism", could provoke a jihadist backlash against France and the West, and African allies.

U.S. officials have warned of links between AQIM, Boko Haram in Nigeria and al Shabaab Islamic militants fighting in Somalia.

Al Shabaab, which foiled a French effort at the weekend to rescue a French secret agent it was holding hostage, urged Muslims around the world to rise up against what it called "Christian" attacks against Islam.

"Our brothers in Mali, show patience and tolerance and you will win. War planes never liberate a land," Sheikh Ali Mohamud Rage, al Shabaab's spokesman, said on a rebel-run website.

U.S. officials said Washington was sharing information with French forces in Mali and considering providing logistics, surveillance and airlift capability.

"We have made a commitment that al Qaeda is not going to find any place to hide," U.S. Defense Secretary Leon Panetta told reporters as he began a visit to Europe. Panetta later said the U.S. had no plans to send troops to Mali.

"I don't know what the French endgame is for this. What is their goal? It reminds me of our initial move into Afghanistan," a U.S. military source told Reuters.

"Air strikes are fine. But pretty soon you run out of easy targets. Then what do you do? What do you do when they head up into the mountains?"

(Additional reporting by Elizabeth Pineau and Raissa Kasolowsky in Abu Dhabi; Felix Onuah in Abuja and Tim Cocks in Lagos; Abdi Sheikh in Mogadishu; Michelle Nichols Louis Charbonneau at the United Nations; Richard Valdmanis in Dakar; Joe Bavier in Abidjan; Jan Vermeylen in Brussels; Writing by Pascal Fletcher and David Lewis; editing by Richard Valdmanis and Giles Elgood)

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Facebook launches search engine for friends' content

MENLO PARK: Facebook launched a search engine Tuesday for shared content as a way to find out more about friends on the huge social network in a potential challenge to Google and other Internet firms.

"We look at Facebook as a big social database," chief executive Mark Zuckerberg said in announcing the so-called "graph search" function. "Just like any database, you should be able to query it."

The search engine aims to help members better navigate the vast amount of information on Facebook, which is not available on Web search engines such as Google.

Facebook emphasised that the new effort is not Web search, but can help find certain information archived within the network and in the content of friends.

"Every piece of content on Facebook has its own audience, and most content isn't public," a Facebook statement said.

"We've built Graph Search from the start with privacy in mind, and it respects the privacy and audience of each piece of content on Facebook. It makes finding new things much easier, but you can only see what you could already view elsewhere on Facebook."

Zuckerberg said that Facebook will also use its partnership with Microsoft's Bing search engine for the new effort and to find content housed outside the social network.

"I don't necessarily think a lot of people will be coming to Facebook to do Web search because of this, but it is a very good search engine," he said.

He said Facebook had discussed working with Google but that "Microsoft was just more willing to do things that were specific to Facebook."

The social network offered examples of graph search queries including "friends who live in my city," "people from my hometown who like hiking," "friends of friends who have been to Yosemite National Park," "software engineers who live in San Francisco and like skiing," "people who like things I like," or "people who like tennis and live nearby."

Zuckerberg said the tool is aimed at "giving the people the power and tools to take any cut of the graph (of data) they want and make any query they want."

He added that "We are not indexing the Web here, we are indexing our map of the graph."

The company said the new function goes back to its original goals of helping people make connections.

"When Facebook first launched, the main way most people used the site was to browse around, learn about people and make new connections," the statement said.

"Graph Search takes us back to our roots and allows people to use the graph to make new connections."

Tech analyst Jeff Kagan said the new Facebook effort is a modest challenge to Google.

"If I were Google, I would see this as a Facebook warning shot across their bow. This is not an immediate attack, but nevertheless an attack is coming," Kagan said.

"Can Facebook transform the search engine world? If the answer is yes than this is a bigger threat to Google."

Forrester Research analyst Nate Elliott said Facebook's initiative aims to get people more engaged on the social network.

"Facebook's worst nightmare is a static social graph; if users aren't adding very many new friends or connections... their personal network becomes less and less active over time," Elliott said.

"But that may be happening: We haven't seen significant growth in the average number of friends per user recently. Graph search seems designed to encourage users to add more friends more quickly. If it means users' personal networks change more frequently, and become more active, then that keeps them coming back to the site -- which is vital to Facebook's success."

- AFP/jc

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