War_Conflict

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** FILE ** Sen. Rand Paul, Kentucky Republican. (Associated Press)

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A protester wearing a painter's mask helps build a barricade against the advance of a police water cannon in the Altamira neighborhood of Caracas, Venezuela, Wednesday, Feb. 19, 2014. Venezuelan security forces backed by water tanks and tear gas dispersed groups of anti-government demonstrators who tried to block Caracas' main highway Wednesday evening. (AP Photo/Alejandro Cegarra)

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A demonstrator raises his arms toward the Bolivarian National Police (BNP) firing tear gas and a water canon in the Altamira neighborhood of Caracas, Venezuela, Wednesday, Feb. 19, 2014. Venezuelan security forces backed by water tanks and tear gas dispersed groups of anti-government demonstrators who tried to block Caracas' main highway Wednesday evening. (AP Photo/Rodrigo Abd)

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A wounded Lebanese man is carried from the site of an explosion in a suburb of Beirut on Wednesday. A blast in a Shiite district in southern Beirut killed several people Wednesday, security officials said. Twin suicide bombings killed at least six people. (Associated press)

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Hands-on experience: Senior Warrant Officer Russton B. Kramer, who has fought in Afghanistan and was awarded the Silver Star for his bravery for action in Iraq, says of the Army's standard-issue M4 carbine, "The reliability is not there."