Nina Rao (L) greets her son Gautam Rao as he exits John F. Kennedy International Airport in the Brooklyn borough of New York on January 19. Rao said he was aboard a Delta Airlines flight that was checked for an explosive device after the airline received two bomb threats for a flight number that two planes shared, according to local media. Media reports said one of those flights was a plane arriving from San Francisco. The other was a plane departing for Tel Aviv. Passengers on both planes were taken off as authorities searched for explosives.  Reuters/Stephanie Keith