Sen. Tammy Duckworth talks to CBS News' Nikole Killion about the investigation into the midair collision of a Black Hawk helicopter and American Airlines flight on Wednesday night. The Illinois ...

Sen. Tammy Duckworth, a former Blackhawk pilot, talked with CBS News' Nikole Killion about the midair collision of a plane ...

An American Airlines plane that was landing in Washington, D.C., and a U.S. Army Black Hawk helicopter on a training flight ...