Then who will guard the Air Force bases?
It's not like the Air Force has tons of AP sitting around doing nothing. Over 700,000 active duty personnel were cut from the military in the last 10 years. That included a lot of APs. You could make a better argument for hiring former APs or activating Reservists/National Guardsmen, but there aren't any active duty APs to spare. Security has been tightened on military bases as well, so the current personnel are being used heavily.