On Monday, a drone came down on the White House lawn, triggering a lockdown. By this afternoon, the Secret Service had spoken with the person who said he was responsible. But it still sparked concerns about another security breach.
Just after 3:00 a.m. Monday, a Secret Service agent heard a noise and saw a small “quad copter” flying low over the White House grounds. The device crashed on the southeast side of the complex.
(From CBS Interactive Inc.)