Shack. Well put. There is a difference between "need" and "want". We could put enough ISR assets in the air to cover every square inch of the planet 24/7 and the Army would say, "Great, can we get 2 assets for every square inch, just in case?" and no one in the USAF would say "no" or "unable" or "maybe that isn't a good idea" because that gets you fired.