When I was at EDN back in 2004, I attended a panel at Semicon China with US and China officials and they were describing how advance process technology was barred from China in fear that they would build ICs for other powers that could be built to create a weapon of mass destruction or technology Ie supercomputer to construct one. But it didn't make sense becasue the restriction seemingly only prevented SMIC from obtraining last-generation fab equipment. So for example the rest of the world was headed to 65nm but SMIC could only get 40nm. That may not be the case any longer. What it meant was that manufacturing wise it wasn't a level playing field.