Nah, LAPD didn't do it.
Wouldn't surprise me if the State Dept has backchannels to encourage things like this from time to time, though, to manufacture headlines and redirect them from uncomfortable ones.
Nothing spawns government popularity like fear and war.
Government is decidedly unpopular right now, with the protests against an AWB going on all over the place, and financial shenanigans, and a cult anti-hero evading Agents of the State. Having the Norks glass over a subterranean cave to create some good old fashioned fear and dependency is not out of the realm of possibility of the people in the halls of power.