Think mass surveillance is just the wheelhouse of agencies like the NSA? Think again. One of the biggest concerns to come from the revelations about the NSA’s bulk collection of the phone records of millions of innocent Americans was that law enforcement agencies might be doing the same thing. It turns out this concern was valid, as last week the government let slip for the first time that the Drug Enforcement Agency (DEA) had also been collecting the phone records of Americans in bulk since the 1990s.