While on the topic of traffic integration with bombers.
What about the B2? Obviously this aircraft is designed so that no one can see it on radar, and I was told once that they are only based at a few places on earth conducting return flights each time. Considering that the B2 flew missions in Afganistan and presumably Iraq and the Balkans, how do they integrate this aircraft into the system to prevent prior knowledge of the impending bombing run yet also prevent mid-air collisions?