I think you meant B-52, not B-2. Probably a typo.
Also, with satellites, our enemies know EXACTLY when they will be overhead. Anything they don't want seen can be moved or covered up. Not so with an aircraft system.
Thank you Mr. Sutter for the 747. I think she is the most beautiful airliner of all time. Watching this magnificent aircraft climb out...I never get tired of it. And I personally find great comfort in the fact that there are four engines in play in these times of 2 engine aircraft, especially when hours away from any coastline.