5 Questions About North Korea's Missile Test You Were Afraid to Ask

North Korea worsened global tensions and further solidified its threats against the U.S. this week when it tested its first intercontinental ballistic missile (ICBM).

After launching the missile, which is capable of reaching American territory, North Korea's leader Kim Jong Un said his nation’s nuclear weapons program will never be up for negotiations. He also warned that North Korea would "demonstrate its mettle to the U.S.