testing and researching airplane and airport design and managing safety in what the F.A.A. calls the National Airspace System, or NAS. In February, Sean Duffy, the new transportation secretary ...

The deadly midair collision near D.C. prompted calls for stricter airspace rules. The National Transportation Safety Board’s preliminary report into the fatal collision between an Army Black ...

China has vowed to respond to 'dangerous and provocative' acts by the U.S. military. In a recent meeting, China's military ...