I'm watching the 1964 movie Fail-safe on TCM. Its about a technical malfunction that orders a group of bombers to attack Moscow with Nukes. Now what would happen today if the Chinese had a malfunction in their nuclear forces and a ICBM or nuclear bomber attacked the US by mistake. The question I have is "Would we have to respond and destroy a Chinese city of comparable size or would we just let it slide?" An eye for eye or turn the other cheek? I think it would be a hard decision for a president to make for political purposes not to mention morality but in the end I think the President would have to order retaliation.