The negotiation and entry into force of the New Strategic Arms Reduction Treaty (New START) heralded the return of verified nuclear arms reductions between the United States and Russia. Looming on the horizon are many difficult issues, in particular, U.S. missile defense plans, which will make future bilateral negotiations more difficult and potentially more contentious. U.S. and Russian officials with responsibility for arms control will discuss what is next on the arms control agenda and how the administrations in Moscow and Washington intend to pursue progress toward disarmament.