Families visit crash site days after the deadliest US air disaster in a generation

Families of victims of the deadliest U.S. air disaster in a nearly in 25 years visited the crash site just outside Washington, D.C. Dozens of people walked Sunday along the banks of the Potomac River near Reagan National Airport, close to where an American Airlines jet and an Army Black Hawk helicopter collided Wednesday. All 67 people aboard the two aircraft were killed. The families arrived in buses with a police escort, memorializing loved ones as federal investigators work to piece together the events that led to the crash and recovery crews were set to pull more wreckage from the chilly water. Transportation Secretary Sean Duffy spoke about the crash while appearing on Sunday morning TV shows.