What Might Be the Consequences If North Korea Tests a Nuclear Weapon?
Kim Jong-un has failed to test an A-Bomb in more than five years.
South Korea's First Vice Foreign Minister Cho Hyundong, from left, Japanese Vice Foreign Minister Takeo Mori and U.S. Deputy Secretary of State Wendy Sherman at a joint news conference after a trilateral meeting last week. AP/Eugene Hoshiko, Pool
