We have no intelligence or evidence that indicates that he (Bin Laden) is dead or incapacitated, so our working assumption is that he is still alive.
When you look at all instruments of statecraft and how that's pulled together, I think the ambassadors are uniquely poised.
As catastrophic as a nuclear attack would be, it would be self-contained.
It's a question of confidence and time. I must stress though that in terms of intelligence cooperation, in terms of operational impact on the enemy, Libya is a good partner.
However, Libya has made enormous progress in the last couple of years and we are hopeful that at some point we can address that question.