How recent killings of U.S. soldiers could affect the war with Iran

President Trump reacted to the recent killings of U.S. soldiers in the Middle East with strong words on Monday, promising that Iran will pay "many times over." Mark Cancian, senior adviser at the Center for Strategic and International Studies, joins CBS News to break down what this means for the war and CBS News' Weijia Jiang has the latest from the White House.