Problem is that measures and counter-measures are developed and
advance so fast that with the advent of successful look-down radars
hiding in the weeds won't work any more. I foresee the employment of
orbital radars/IRs/passive microwave sensors so that any
energy-emitter will be detected and tracked. Coupled with enough
computing power, any object moving in relation to the earth will also
be detected and tracked. This is why I say the only way to go is
stealth - and the sooner the better. It's one hell of a force
multiplier.
Walt BJ