Those foundries didn't go away, they're still manufacturing with the same capabilities they used to (and they're much cheaper now since they're competing with the better ones in Taiwan.)
It's good to hear TI hasn't given up on high performance SOCs as it was beginning to look like they had. But most of this stuff is still here. Freescale and many other American companies are still making the same (better even) chips they always have which is more than enough for cruise missiles (more than enough for decent PDAs and smartphones really) even without "stockpiling."