The workers, whose agency oversees the nation’s nuclear stockpile, had been fired on Thursday and lost access to their federal government email accounts.

A helicopter outfitted with radiological detection equipment has been making low-altitude flights over New Orleans and ...

A helicopter outfitted with radiological detection equipment has been making low-altitude flights over New Orleans and ...

Just over 24 hours before the fatal collision, a different regional jet had to go around for a second chance at landing at Reagan National after it was advised about a military helicopter nearby ...

WASHINGTON — Federal authorities have restricted helicopter flights near Ronald Reagan Washington National Airport ... The Federal Aviation Administration will limit helicopter flights on ...

The DOE's National Nuclear Security Administration will conduct the flights using a Leonardo AW-139 helicopter. In a statement, the DOE said, "The public may see a Leonardo AW-139 helicopter, which is ...

ARLINGTON, Va. — The Federal Aviation Administration is significantly restricting helicopter traffic in the immediate vicinity of Washington Reagan National Airport, according to an official ...

The DOE's National Nuclear Security Administration will conduct the flights using a Leonardo AW-139 helicopter. Advertisement In a statement, the DOE said, "The public may see a Leonardo AW-139 ...

Investigation into the fatal plane-helicopter crash ... the U.S. are upgrading their testing facilities. The National Nuclear Security Administration, the civilian agency maintaining America's ...

The next steps in the fatal midair plane and helicopter crash investigation. And, why nuclear testing could ramp up in the ...