The United States' last B53 nuclear bomb is being dismantled on Tuesday, Oct. 25, 2011, at the Pantex Plant just outside Amarillo, Texas. (AP Photo/National Nuclear Security Administration)
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The United States' last B53 nuclear bomb is being dismantled on Tuesday, Oct. 25, 2011, at the Pantex Plant just outside Amarillo, Texas. (AP Photo/National Nuclear Security Administration)
