A congressional hearing has reinforced the idea that the January collision between an American Airlines passenger jet and an Army helicopter that killed all 67 people aboard both aircraft could have been prevented.

A congressional hearing Thursday reinforced the idea that the January midair collision between an American Airlines passenger jet and an Army helicopter that killed all 67 people aboard both aircraft could have been prevented.

The head of the National Transportation Safety Board that is investigating the crash is appearing along with the leaders of the Federal Aviation Administration and the Army’s aviation

A U.S. passenger flight preparing to leave the nation’s capital and an incoming military jet received instructions to divert and prevent a possible collision, officials said.

A Delta passenger plane and an Air Force jet flew narrowly close to one another outside Washington, D.C., on Friday, prompting a collision warning and "corrective instructions" from air traffic controllers.