Photo by: Evan Vucci Defense Secretary Chuck Hagel pauses during a news conference at the Pentagon, Friday, Nov. 14, 2014, where he announced that he is ordering top-to-bottom changes in how the nation's nuclear arsenal is managed, vowing to invest billions of dollars more to fix what ails a force beset by leadership lapses, security flaws and sagging morale. (AP Photo/Evan Vucci)
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