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 ...

The Department of Energy said Friday low-altitude helicopter flights to measure background radiation will be conducted over New Orleans Feb. 2 through Feb. 6 as part of security precautions for the ...

BOSTON (STATE HOUSE NEWS SERVICE) – A helicopter equipped with radiation-sensing technology will make several low passes over the Boston Marathon route later this week to measure naturally occurring ...

If you see a low-flying helicopter hovering above the route of the Boston Marathon, there’s no need to worry. Authorities said low-altitude helicopter flights will be conducted Wednesday through ...

LOS ANGELES (CBSLA) — Authorities are completing background radiation measurements over Southern California as part of the security precautions being put in place ahead of the Super Bowl. According to ...

SAN FRANCISCO -- Federal and local officials say a helicopter will be flying low over the Bay Area this week as part of a federal research program measuring background radiation. The helicopter, 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.

Low-flying helicopters will be seen over downtown Washington, D.C., and the National Mall beginning on Monday to assess radiation levels in the city before the presidential inauguration on Jan. 20.

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 ...

The city of Tukwila wants everyone to know the state will be measuring background radiation levels by helicopter Monday: Lessons from the nuclear incidents in Fukushima, Japan show the value of a ...