We previously posted a link about a Predator drone sighted over Elgin, IL.
Wired has posted an interactive map of US drone bases.
Below are links to other key articles and posts about drones over U.S. airspace.
"Drones Over America" in The New American, May 9, 2012.
"Thousands Of Military Drones To Be Deployed Over US Mainland" in Countercurrents, June 18, 2012. The article references the DoD map of current and future drone bases reproduced below.
(See "Immigration Border Crisis": The Perfect Excuse for Total Drone Surveillance )
A drone crash in Maryland near the Chesapeake Bay was one of the first incidents to bring crashes by military drones to the attention of the American public.
(See Maryland Drone Crashes: The Other Shoe Drops )
(See Idaho the Perfect Place for Drones?)