Technology_Internet

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Transportation Security Administration chief John Pistole says he is looking into airport scanning technology used overseas. (Associated Press)

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The hardware for an IBM computer called "Watson" is seen after a practice round of the "Jeopardy!" The size of 10 refrigerators, "Watson" bested its human rivals. (Associated Press)

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In this frame-grab image taken from amateur video acquired by Associated Press Television News, protesters are seen amid a burning vehicle in Douz, Tunisia, on Wednesday Jan. 12, 2011. (AP Photo)

This image taken from Facebook.com on Wednesday, Jan. 12, 2011, shows the Facebook page of former Alaska Gov. Sarah Palin. A nearly eight-minute video was posted on her page early Wednesday, accusing journalists and pundits of inciting hatred and violence in the wake of a deadly Arizona shooting that gravely wounded a U.S. congresswoman. (AP Photo/Facebook.com)

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** FILE ** In this July 13, 2004, file photo provided by Sony Pictures Television, software developer Ken Jennings from Salt Lake City, Utah, right, poses for a photo with Jeopardy host Alex Trebek on the set of the show in Culver City, Calif. On Thursday, Jan. 13, 2011, the IBM hardware and software system named Watson was to play a practice round against Ken Jennings, who won a record 74 consecutive "Jeopardy!" games in 2004-05, and Brad Rutter, who won a record $3,255,102 in prize money. (AP Photo/Sony Pictures Television, File)

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Former Alaska Gov. Sarah Palin posted a video statement on her Facebook page Wednesday, criticizing media pundits for blaming her in the Arizona shooting. (AP photo)

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Mirrors direct the sun's rays for large solar thermal power plants at the Rotem Industrial Complex in southern Israel in 2008. The nation is a leader in clean technology. (Associated Press)

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Dan Mead (left) of Verizon Wireless and Tim Cook of Apple announce that Verizon Wireless will start selling Apple's iPhone next month. (Associated Press)

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Dan Mead, left, CEO of Verizon Wireless, and Tim Cook, COO of Apple, announce that Verizon Wireless will carry Apple's iPhone, Tuesday, Jan. 11, 2011 in New York. (AP Photo/Mark Lennihan)

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Kai Pommerenke looks at family photos at his home in Santa Cruz, Calif., on Wednesday. Mr. Pommerenke started a nonprofit, Chronicle Of Life, last month that he calls the first online storage service to guarantee your data forever. (Associated Press)

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Mr. Pommerenke looks at family photos with son Finn and daughter Ciara, right. "Digital data is fragile," he said. "You have to do something active in order to preserve it." (Associated Press)

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FILE - This undated publicity image released by Columbia Pictures shows Jesse Eisenberg, left, and Joseph Mazzello in a scene from the movie, "The Social Network." (AP Photo/Columbia Pictures, Merrick Morton) NO SALES

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An iPhone, fitted with a Tivizen mobile digital television receiver plays a live newscast at the International Consumer Electronics Show, Friday, Jan. 7, 2011 in Las Vegas. (AP Photo/Julie Jacobson)

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In this Thursday, Jan. 6, 2011 picture, LG President and CEO J.S. Park, left and T-Mobile CEO and President Philipp Humm hold the G-Slate tablet PC during a news conference at the Consumer Electronics Show in Las Vegas. (AP Photo/Isaac Brekken)

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This combination of four photos shows four new tablet devices being presented this week at the 2011 Consumer Electronics Show in Las, Vegas. They are, clockwise from the upper left corner: the Motorola Xoom tablet, the Dell Streak 7 4G tablet, Panasonic's Viera Tablet, and the Samsung 7 Series sliding PC. (AP Photo/Julie Jacobson, (first and third photos), Isaac Brekken, (second and fouth).

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In this Dec. 29, 2010 photo, an Israeli soldier handles explosives during an army drill near the Shivta Field Artillery School, southern Israel. Israel is among several nations to harness digital and satellite technology to develop "C4I" systems _ short for "command, control, communications, computers and intelligence." The latest version of the communication system that compiles battlefield information in an easy-to-use, video game-like interface, allows all forces on the ground to communicate instantaneously.(AP Photos/Bernat Armangue)