Investigators vow to 'leave no stone unturned' in probe of deadly mid-air collision - Officials say there are no survivors among the 67 passengers on the aircrafts that collided above Washington, D.C.

Sean Duffy, the new transportation secretary, was facing his first major crisis just hours after being sworn in for the job.

A jet with 60 passengers and four crew members aboard collided Wednesday night with an Army helicopter while landing at ...