Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Putin Orders Suspension of Plutonium Cleanup Program with US by Reuters Russian President Vladimir Putin signed a decree on Monday to suspend an agreement with the United States on disposing of weapons-grade plutonium, a further sign of worsening ties between the former Cold War foes. The deal, which was signed in 2000 and went into force under a 2010 agreement, was being suspended due to "the emergence of a threat to strategic stability and as a result of unfriendly actions by the United States of America towards the Russian Federation", the preamble to the decree said.