senators, bob graham and jim talent, attempting to reduce wm d proliferation and terrorism, influence your commission at all? >> the simple answer to that is yes. there are a number of in different processes and enterprises and studies, some u.s. some on u.s. some multilateral, multinational, i might mention the efforts of the former australian, and former japanese foreign ministers to look at nuclear arms control, with a focus on asia, is a very worthwhile effort, and we are in touch with that group. we are very aware of the work that is under way by the so-called gang of four. george shultz and military -- i milt perry and others, we have a staff that is in touch with these different efforts. we want to be fully collaborative. i want to emphasize, we don't believe that we have all the answers, but what we are trying to to do in a kind of unique way, is provide a long-term plan, a long-term concept, end to end solution, looking at global zero. if other people's work and analysis and political insights can aid in that process, we welcome that