f-35 and probably f-22 killer, page-8

Rm you're probably right, spies have been infiltrating the enemy since time immemorial.

I don't think anyone can seriously challenge the USA militarily for a fair while yet, I'm thinking at least a decade or two.

Who knows what they have up their sleeve in Area 51 and elsewhere???

Most of these current designs were conceived at least 20yrs ago so no doubt they have other technology that very few people know about.

But I bet the Chinese particularly are working hard to close the gap.