You should worry more about Chinese-American academics moving back to China developing their own technologies. As for economic impacts, there will be none because I think CCP is such a smooth operator minus some stupid knee jerk reactions i.e. it should let foreign news stay in Tibet. Better yet try to have them killed by Tibetans (you see even if the rioters won’t kill them; you can always pay some other Tibetans to do it 👿 ).