Add Yahoo as a preferred source to see more of our stories on Google. A helicopter registered to the National Nuclear Security Administration (NNSA) was spotted flying in a grid pattern over Red Rock ...

The airspace above Reagan National Airport, where a commercial plane collided with an Army helicopter this week, has become increasingly congested... Loading ...

Transportation Secretary Sean Duffy, who was sworn in earlier this week, said on Thursday both an American Airlines passenger jet and a U.S. Army helicopter were in standard flight patterns before ...