Terrell Davis, an NFL Hall of Famer, is speaking out after being handcuffed in front of his children and questioned after the United flight he was on landed in Orange County, Calif. Davis said he had tapped a flight attendant on the shoulder to get a cup of ice. The FBI says agents were responding to a report of a violent assault. United Airlines says it has removed the flight attendant from duty while it investigates. NBC News' Yasmin Vossoughian reports.