War_Conflict

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An Afghan policeman (left) mourns after a police truck was hit by a roadside bomb in Kandahar, Afghanistan, on Jan. 27, 2013. The truck was packed with officers and detainees, several of whom were killed in the blast, officials said. (Associated Press)

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Egyptian protesters clash with riot police, not seen, near Tahrir Square, Cairo, Egypt, Tuesday, Jan. 29, 2013. Intense fighting for days around central Tahrir Square engulfed two landmark hotels and forced the U.S. Embassy to suspend public services on Tuesday. (AP Photo/Khalil Hamra)

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Iraq war veteran Brendan Marrocco speaks at a press conference after a surgical team lead by Johns Hopkins physicians successfully performed the hospitalÃs first bilateral arm transplant, Baltimore, Md., Tuesday, January 29, 2013. Marrocco, who lost all four limbs from a bomb outside Baghdad, Iraq., is expected to slowly develop control over his new arms over the next year and a half. (Andrew Harnik/The Washington Times)

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Surgical team leader Dr. W.P. Andrew Lee speaks at a press conference to announce the Johns Hopkins Hospital's first successful bilateral arm transplant performed on Iraq war veteran Brendan Marrocco, Baltimore, Md., Tuesday, January 29, 2013. Marrocco, who lost all four limbs from a bomb outside Baghdad, Iraq., is expected to slowly develop control over his new arms over the next year and a half. (Andrew Harnik/The Washington Times)

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Iraq war veteran Brendan Marrocco at a press conference after a surgical team lead by Johns Hopkins physicians successfully performed the hospitalÃs first bilateral arm transplant, Baltimore, Md., Tuesday, January 29, 2013. Marrocco, who lost all four limbs from a bomb outside Baghdad, Iraq., is expected to slowly develop control over his new arms over the next year and a half. (Andrew Harnik/The Washington Times)

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Iraq war veteran Brendan Marrocco's new arms are visible as he speaks at a press conference after his surgical team lead by Johns Hopkins physicians successfully performed the hospitalÃs first bilateral arm transplant, Baltimore, Md., Tuesday, January 29, 2013. Marrocco lost all four limbs from a bomb outside Baghdad, Iraq. (Andrew Harnik/The Washington Times)

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Surgical team leader Dr. W.P. Andrew Lee speaks at a press conference to announce the Johns Hopkins Hospital's first successful bilateral arm transplant performed on Iraq war veteran Brendan Marrocco, Baltimore, Md., Tuesday, January 29, 2013. Marrocco, who lost all four limbs from a bomb outside Baghdad, Iraq., is expected to slowly develop control over his new arms over the next year and a half. (Andrew Harnik/The Washington Times)

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Iraq war veteran Brendan Marrocco, second from left, speaks at a press conference next to members of his surgical team lead by Johns Hopkins physicians who successfully performed the hospitalÃs first bilateral arm transplant, Baltimore, Md., Tuesday, January 29, 2013. Marrocco, who lost all four limbs from a bomb outside Baghdad, Iraq., is expected to slowly develop control over his new arms over the next year and a half. (Andrew Harnik/The Washington Times)

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Iraq war veteran Brendan Marrocco departs after a press conference after a surgical team lead by Johns Hopkins physicians who successfully performed the hospitalÃs first bilateral arm transplant on him, Baltimore, Md., Tuesday, January 29, 2013. Marrocco, who lost all four limbs from a bomb outside Baghdad, Iraq., is expected to slowly develop control over his new arms over the next year and a half. (Andrew Harnik/The Washington Times)

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In a Dec. 18, 2012 photo provided by Johns Hopkins Medical, a surgical team at Johns Hopkins Hospital in Baltimore works on a double arm transplant for U.S. Army infantryman Brendan Marroco, 26, who lost all four limbs in Iraq. The transplants are only the seventh double-hand or double-arm transplant ever conducted in the United States. The infantryman was injured by a roadside bomb in 2009. (AP Photo/Johns Hopkins Medical)

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Egyptian riot police fire tear gas at protesters, not seen, during clashes in front of the Semiramis Intercontinental hotel, background near Tahrir Square, Cairo, Egypt,Tuesday, Jan. 29, 2013. (AP Photo/Khalil Hamra)

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A U.S. Air Force F-16 jet fighter from the 31st Fighter Wing lands at NATO's Aviano Air Base in Aviano, Italy, on Friday, March 25, 2011. (AP Photo/Luca Bruno)

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In a Dec. 18, 2012, photo provided by Johns Hopkins Medical, a surgical team at Johns Hopkins Hospital in Baltimore works on a double-arm transplant for U.S. Army infantryman Brendan Marroco, 26, who lost all four limbs in Iraq. The transplants are only the seventh double-hand or double-arm transplant ever conducted in the United States. The infantryman was injured by a roadside bomb in 2009. (AP Photo/Johns Hopkins Medical)

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Syrian refugees extinguish fire after it caught on a tent at Zaatari Syrian refugees camp, in Mafraq, near the Syrian border, Jordan, Monday, Jan. 28, 2013. A refugee tent caught on fire, and the family who lives in it was evacuated by the refugees. (AP Photo/Mohammad Hannon)