[thatguy96]

I find this hard to understand. The USAF has completely transitioned away from complete bombs, which started in the late 1950s. The bombs are assembled at airbases before being loaded onto aircraft. The actual explosive element of any of the currently utilized smart bombs could easily be made dumb by assembling it without the "smart" nose and tail sections. With JDAMs the guidance element is contained entirely in the tail section.

So unless we've stopped purchasing the warhead sections, I find it hard to believe that if needed, dumb bombs would be hard to come by. I would imagine the tail sections and nose fuzes (for the really old warheads) aren't being thrown out.