I really think if the US wants to retaliate they can just make it legal for US citizens to hack china's targets. Then just wait for the phone call "Prease make it stop!"
I was wondering about this. What recourse would the Chinese government have if you sabotaged some of their systems? Stealing their data would be the best move but causing some problems wouldn't be too difficult.
I didn't envision anything harmful like stuxnet. But It would be funny to see some 14 year old kid take ownership of Atlantic Yards in Brooklyn.
The mix up of "r" vs "l" thing is a Japanese problem, not a Chinese one. Are you saying that if the US hacks China, the Japanese will call the US to stop? Be a little smarter and do a little more research next time when trying to be cute.