After mishandling Parkland shooter tip, FBI answers questions from Congress

Acting Director of the Bureau of Alcohol, Tobacco, Firearms and Explosives Thomas Brandon (from left), Acting Deputy FBI Director David Bowdich and U.S. Secret Service's National Threat Assessment Center head Lina Alathari are sworn in before testifying to the Senate Judiciary Committee on Wednesday.
Acting Director of the Bureau of Alcohol, Tobacco, Firearms and Explosives Thomas Brandon (from left), Acting Deputy FBI Director David Bowdich and U.S. Secret Service's National Threat Assessment Center head Lina Alathari are sworn in before testifying to the Senate Judiciary Committee on Wednesday.