Does North Korea Need To Test Its Nukes?

North Korea’s tests of seven missiles on Wednesday, including the long-range Taepodong 2, shocked the U.N. Security Council, which has called an emergency meeting in response. In 2005, Dan Engber explained why North Korea might have to test its nuclear weapons: “It takes sophisticated engineering to make nuclear warheads with plutonium that are small enough to mount on ballistic missiles. And to be confident in their use, you would need to have tested both the warhead and the missile itself.”