WASHINGTON (NEXSTAR) - The head of the FAA says the organization needs to do more to ensure safe flights. Lawmakers demanded answers on how a deadly mid-air collision in Washington, D.C., happened, which took the lives of 67 people. More details were shared by the chair of the NTSB about the cras h between the American Airlines jet and the Black Hawk helicopter and she put some of the blame on both the Army and the FAA. Kansas Senator Jerry Moran and NTSB chair Jennifer Homendy agreed the FAA should've been well aware of the crash risk over Reagan National Airport. The FAA was pressed on how it didn't notice an alarming number of close calls near DCA that could've helped prevent the January tragedy. "There does seem to be an issue with identifying emerging trends,” said Homendy. Illinois Senator Tammy Duckworth echoed this concern. "A challenging airspace is no excuse. This should never have happened,” said Duckworth. The NTSB also demanded the army to better monitor the flight path of their helicopters. The location technology used, ADSB out, as turned off during the incident. The FAA says it is now using artificial intelligence to dig into safety reports to see if they can highlight other vulnerable areas. ...read more read less