Videos show the moments Riyadh Airport, the main airport in Saudi Arabia, was hit in a deadly attack on Saturday and then again on Sunday, killing more than a dozen including one American. Now questions swirl about whether the United States will join airstrikes against the Iranian-backed Houthi militants responsible for the attacks, which would widen the U.S.-Iran conflict just weeks before the midterm elections. NBC’s Keir Simmons reports for TODAY.