And chemists who understand how plutonium ages also develop forensics to track missing nuclear material and catch those trafficking in it.

WHITEHOUSE: VP Biden: The Path to Nuclear Security

Food inspectors, air-traffic controllers, specialists who track down loose nuclear material wouldn't get their paychecks.

WSJ: Noonan: His Terms Are Always Hostile Ones

Mr Biden said without such approval, the US would be unable to inspect and track the Russian nuclear arsenal.

BBC: Biden warns failure to pass nuclear treaty endangers US

We are strongly supporting the International Atomic Energy Agency in its mission to track and control nuclear materials around the world.

CNN: Transcript of State of the Union

The negotiations to secure significant reductions in Russian and U.S. offensive nuclear stockpiles and nuclear-weapons delivery systems appear to be on track for a framework agreement by the July 6 Moscow summit and a final treaty by December, White House officials say.

WSJ: U.S. and Russia Push Arms-Control Talks Forward

And we have a great track record and enormous expertise in the United States of developing nuclear power in a way that is safe and secure.

WHITEHOUSE: President Obama and Prime Minister Tusk Press Conference