When he sent the missile through Japanese airspace their population sheltered in place and thought, briefly, it was a real attack.

We cannot afford to assume he's all bark and no bite because if there's even the slightest chance we lose that bet, it's a huge loss.

Plugging in the numbers and presuming these assumptions are appropriate, the rule of thumb is surprisingly simple: D = Y, where D is the maximum damage distance expressed in kilometers and Y is the yield of the blast in kilotons. So, a 20 KT bomb detonated at optimum height would have a maximum EMP damage distance of 20 km; a 1 MT (1,000 KT) bomb would damage out to 1,000 km. The largest North Korean test to date has been estimated to be about 20 KT

Conclusions

Considering the physics behind EMP and the status of North Korea’s nuclear program to date, doomsday headlines in the press regarding the North’s potential EMP threat are grossly overstated.[4] North Korea’s nuclear tests have not yet demonstrated sufficient yield to cause damage to large areas through EMP. Moreover, with only a limited arsenal, it would not make sense for the North Koreans to conduct nuclear tests simply to develop EMP weapons.

Is this on anyones radar today? North Korean minister claims Trump declared war with his tweets. Should be interesting how this plays out. Yet Kimmy was sending missiles all around the pacific. Guess their actions don't count. http://www.king5.com/news/nation-world/ ... /478465206

He's more likely to blow himself up.