How to deal with the world’s most dangerous regimeDonald Trump grapples with his trickiest task NORTH KOREA can be as confusing as it is alarming. It is a hereditary Marxist monarchy. It has the world’s youngest supreme leader and also its oldest. The reigning tyrant, Kim Jong Un, is in his 30s; and his grandfather, Kim Il Sung, is the “eternal president” despite having died in 1994. To celebrate