Las Vegas residents are likely to see a low and slow-flying helicopter over the valley on Sunday and Tuesday. The U.S. Department of Energy’s National Nuclear Security Administration will conduct ...

WASHINGTON, D.C. — If you see a helicopter flying low in DC airspace on Tuesday, don't worry: the Department of Energy is just measuring naturally occurring background radiation, the agency said in a ...

MILWAUKEE - A helicopter was flown low over downtown Milwaukee on Tuesday, July 9. Now, officials have confirmed it has to do with security and safety for the Republican National Convention. The U.S.

The National Nuclear Security Administration is flying helicopters at low altitudes over the District this week and next in preparation for next month’s inauguration. But the flights are not part of a ...