Those Serbs had a LOT of help...even from NATO...in getting that bird.
Spies in Italy, ingress routes locked in, etc.
I suspect that it was Clintoon and his cabal of leftists that sacrificed that bird so the commies and our enemies could learn from it.
The funny thing was, that stealth tech was outdated by the time it was used. It still worked, but there were better stealth craft already.