The main international airport in Riyadh remains closed after Houthi forces fired a barrage of missiles at the main terminal, causing massive damage and killing at least 13 people over the weekend. Saudi Arabia's government has vowed to retaliate and now wants the U.
S. to join in. Gregory Gause, associate fellow at the Middle East Institute, joins CBS News to discuss the level of power the Houthis hold in the Middle East.