Maybe they should.
Oh please, not the Serbs again...
Once more, you are not living up to your forum handle.
Wiser heads than you recognized the real reason why that single F-117 was shot down, and it had little to do with radar. In Iraq, the F-117 flew under US rules. In Yugoslavia, the F-117 flew under NATO rules.
Over Yugoslavia, the F-117 was restricted to when and how it could fly its mission. The US never claimed 'stealth' mean invisibility to radar. I have said it many times in this forum over the yrs, that radar sees everything. The real phrase is 'low radar observability'. Nothing 'invisible' about it. So if you want to talk about hype, look at the media, not the Pentagon.
Over Yugoslavia, the F-117 had to use predictable ingress routes and in war, patterns means death. When people extolled Zoltan Dani, they talk as if Lockheed did not know basic radar detection principles and how radar signals behaves on a body. The reality is that Lockheed tested the F-117 under all know radar freqs, including the long wavelengths that would make the F-117 more radar observable. Not completely visible like normal aircraft, just less 'stealthy', to use that word.
So when Zoltan Dani modified his air defense radar to use those longer wavelengths, eventually he will detect something that was predictable. The word 'predictable' implies time, as in he must have detected a repeating echo over days. Then he was confident enough to fire.
Nevertheless, NATO flew over 30,000 sorties over Yugoslavia and lost only two aircrafts: one F-16 and one F-117.
Two kills out of 30,000 incursions of your airspace is not a defense record to boast about at the bar, mate. And did you know that those 30,000 sorties includes 60 of B-2's. If what Dani did to his radar worked so good, why not one B-2 kill ? The B-2 is a much larger aircraft than the F-117, right ?
As for the Russians and the T-50, how is that program coming ?