the embassies will be OK - just don’t visit the missile sites or military installations.
If they make good and drop one a-bomb on ANY us target—all bets are off. The people will demand a nuclear reply—and a massive one. If Obama fails, a mob of angry citizens and soldiers will pull him from the White House and string him up. He will have no choice put to unload a Boomer sub’s rockers on the North— North Korea will cease to exist — Maybe China or the South will take over what is left.