Family members of some of the 67 people killed in January’s midair collision in Washington listened to the US Army and Federal Aviation Administration take fiery questions from lawmakers for the first time Thursday at a Senate subcommittee hearing on the preliminary findings of the accident.

The Army and FAA continued to allow flights to operate near Washington, D.C with communication turned off after a midair collision

The head of the National Transportation Safety Board says if investigators were able to quickly find alarming data about the number of close calls in the years before the fatal midair collision over the nation’s capital in January,