[Snurple]

Ya cant hit what ya cant see...

And this is old technology. Hell we've probably got invisible flying saucers to zap em with now. ;)

[A.A. Cunningham]

Ya cant hit what ya cant see...

In order to be not seen, those need to be accompanied by these:

to suppress the low band search radars which can easily detect those billion dollar a copy maintenance nightmares which you incorrectly claim cant(sic) be seen.

[Prophet in the wilderness]

It's hard to believe that the B-2 was unveiled 20 years ago to the general public.
However, the technology is over 20 years old.
As far as the military is concerned, this is old technology.