North Korea fired a test of a medium range missile with a very high parabolic path, to 1200 miles altitude (highest enough for EMP) and 400 miles distance, toward eastern Russia and possibly Alaska.
CNN has the details today here
Charlie Rose tonight on PBS was rather cavalier on speculating that North Korea might already have the capability to hit the US, at least western Alaska or Guam.
North Korea might have been behind the ransomware attack, which so far had little effect on the US. The Guardian has a story to that effect.
Update: May 23
Media have posted more stories about North Korea's malware engines (training young adults in China). There was another missile test, aimed toward Japan, about 300 miles, and indications that North Korea is getting "better" at this. And there seems to be a breaking interchange with the South right now,