The Obama administration has announced new guidelines for limiting the use of nuclear weapons. Outlined in a nuclear posture review released today, the policy states that the main role of nuclear weapons is to deter or respond to a nuclear attack, and that the U.S. will not use such weapons against non-nuclear states that are in compliance with the Nuclear Nonproliferation Treaty. On Thursday, President Obama and Russian President Demitry Medvedev are expected to sign a new START treaty to reduce their countries' nuclear arsenals. What does this strategy mean for national defense and international relations?
David Hoffman, contributing editor to Foreign Policy magazine, formerly of The Washington Post. He is author of The Dead Hand, a book about the nuclear arms race
Jim Walsh, International security expert at the Security Studies Program at M.I.T.
Lieutenant General Dirk Jameson, Retired US Army