A Peacekeeper Missile replica stands near F.E. Warren Air Force Base, Wyo., Gate 1 April 4, 2012. The missile was the most powerful weapon in the U.S. arsenal until its deactivation in 2005. A Peacekeeper Missile site is scheduled to be turned into a museum in Wyoming, the only state in which the missile system was active. (U.S. Air Force photo by R.J. Oriez)