But, US president warns that if Pyongyang doesn’t abandon its nuclear weapons and ballistic missile programs there could be a potentially tremendous 'loss of lives, numbers that nobody’s ever contemplated, never thought of'
In 2005, U.S. Marine Travis Williams and his squad were on a rescue mission in Iraq. Their vehicle was hit by a roadside bomb. Williams alone survived. He talked to StoryCorps about the hours and days after the explosion, as well as his life now, and pays tribute to the men he left behind.