I heard this, and you can listen to it, on yesterday’s Talk of the Nation: Science Friday on NPR.
Talk of the Nation, July 7, 2006 · The U.S. nuclear weapons stockpile is aging and, according to the government, the older weapons are ready to be retired. New weapons are in the planning stages, but bans on certain forms of weapons testing leave weapons scientists with a challenge: is it possible to build a nuclear bomb and be so certain it will work that physical tests will never be necessary? Guests discuss the next generation of nuclear weapons.
Guests:
What happened to the Treaty on the Non-proliferation of Nuclear Weapons? So much for disarmament.
