North Korea Says It Has Tested Hydrogen Bomb That Can Fit on ICBM

North Korea on Sunday claimed to have successfully tested a hydrogen bomb designed to be placed on a newly developed intercontinental ballistic missile — prompting a barrage of responses from President Donald Trump, including an ominously vague answer when asked if he would "attack" the country. This is the sixth time that North Korea has conducted a nuclear test, and the underground explosion seems likely to ratchet up already high tensions between the country's leader, Kim Jong Un, and President Donald Trump.