When a former negotiator once known for advocating dialogue with North Korea says it’s time to force the Pyongyang regime to ponder its own demise, it’s hard not to pay attention.

But that’s exactly what Evans Revere, one of the State Department’s former top Asia hands and a long-time Korea watcher, is saying today with increasing urgency.

Having watched “everything else we have tried fail” over recent decades, Revere said that following May’s Seventh Congress of the Workers’ Party of Korea in Pyongyang he is now more pessimistic than ever about the future of U.S.-North Korea relations.

As a result, Revere says only an “unprecedented” level of