WASHINGTON – The United States has 5,113 nuclear warheads in its stockpile and "several thousand" more retired warheads awaiting the junkpile, the Pentagon said Monday in an unprecedented accounting of a secretive arsenal born in the Cold War and now shrinking rapidly. The Obama administration disclosed the size of its atomic stockpile going back to 1962 as part of a campaign to get other nuclear nations to be more forthcoming, and to improve its bargaining position against the prospect of a nuclear Iran.
