And it comes after a recent U.N.Security Council vote to impose another round of sanctions against Tehran for its nuclear program and the U.S.Congress's approval of harsher unilateral sanctions against nations that supply Tehran with gasoline.

VOA: standard.2010.06.29

It has similarly failed to respond to an invitation by European Union Foreign Policy chief Javier Solana for a new round of talks on its nuclear program with the five permanent U.N.Security Council member countries and Germany,the P5+1.

VOA: standard.2009.06.24

It could be the start of a much bigger round of nuclear construction in the U.S.--if the controlling owner of the site, Southern Co.

FORBES: Magazine Article

Clinton told Putin that changes would have to be made in the 1972 Anti-Ballistic Missile treaty before the United States could engage in the next round of nuclear arms reduction talks, known as START III, Talbott said.

CNN: US - Clinton, Putin discuss Balkans, arms control, missile defense

Nor is progress on nuclear weapons expected this time round.

BBC: The US and India: Moving closer