>> marybeth sheridan. the nuclear posture review talks about reducing the role and the numbers of weapons. i did not see much about the numbers of weapons, other than the start figures, which a lot of people consider modest. where do you see the reduction in numbers? >> i think it was addressed in the last chart. we're looking to -- after entry into the new start treaty, and then engage with russia on a dialogue that would address the full range of weapons. after this treaty, we will still have the vast majority of nuclear weapons in the world. we think it is appropriate to take that step next. >> general cartwright, what is the military's view after all of this about no new nuclear warhead? are you concerned that the door has been shut too much? can you review this concept? >> on the no new and the caveat is associated with the replacement, no, i do not feel constrained in the least. i think we have enough capacity and capability for any threat we will see. the capabilities that have been brought on board