According to a report on CNN News, the Air Force has grounded ALL flights of fighters and bombers in the US on 9/14 to check on procedures - this was due to a recent error where a B52 bomber flew across several states on the way to Louisiana not realizing that they had nuclear weapons on them! I do not think it is a good idea for the Air Force to announce something like this. It is precisely the type of information that terrorists like to hear about.
 
Rene