U.S. warhead disposal in 15-year backlog...

President Obama plans deep new cuts in the U.S. nuclear arsenal at a time when the government faces a 15-year backlog of warheads already waiting to be dismantled and a need for billions of dollars in new facilities to store and dispose of the weapons' plutonium.
The logjam of thousands of retired warheads will grow considerably based on a promise made in April by Obama and Russian President Dmitry Medvedev to get their stockpiles far below levels set by current disarmament pacts....