On the eve of the investigative hearings, Republican Sen. Ted Cruz introduced legislation called "The Rotor Act," which would require all aircraft, including military, to transmit ADSB location when flying -- a system that allows aircraft to transmit its location to other aircraft as well as to air traffic controllers.

Night vision goggles may have created viewing difficulties for the pilots of a US Army helicopter that collided with a passenger jet.

The National Transportation Safety Board will wrap up its public testimony about the fatal midair crash between an Army helicopter and a commercial jet.

The National Transportation Safety Board will question witnesses Thursday about air traffic control training, a key part of the investigation into January’s deadly midair collision at Ronald Reagan Washington National Airport.