Helicopter in Washington, DC on Mission to Detect Gamma Rays
Description:A helicopter in Washington D.C. is measuring gamma rays. It's not uncommon for manmade birds to fly over Washington DC.Recently, though, a helicopter has been scoping out the scenery of the nation's capital for a bizarre reason.According to the National Nuclear Security Administration, officials are trying to measure radiation levels in the area. They are attempting to measure gamma rays, which are commonly created in nature due to nuclear decay.(1:03)