Wonder where they got the technology... Can you say Serbia when ours got shot down, on Clintons little adventure..
That was first generation stealth - the F-117A. Technology has come a long way since then - and if it's going to compete with the F-22 Raptor, it had better be way better than the F-117.
Not that it is impossible or even unlikely that the Russians saw the F-117 downed in Serbia, but there were strong rumors that the Chinese had possession of some of the key technology and were evaluating it at their embassy. That's why we accidently bombed the Chinese Embassy in Belgrade.
Who knows....stranger things have happened.