North Korea: Tests and Tension - VOA Asia Weekly

North Korea recently celebrated its 68th anniversary. To celebrate, leader Kim Jong Un fired off the country’s latest submarine-based test missile, detonated a fifth nuclear bomb, and conducted a rocket engine test. The world condemned the provocative actions of the defiant nation. Why has 2016 seen so many test? The Center for the National Interest’s Harry Kazianis and the University of Leed’s Adam Cathcart break things down.