American Civil Liberties Union

Justice Department documents released today by the ACLU reveal that federal law enforcement agencies are increasingly monitoring Americans’ electronic communications, and doing so without warrants, sufficient oversight, or meaningful accountability.

The documents, handed over by the government only after months of litigation, are the attorney general’s 2010 and 2011 reports on the use of “pen register” and “trap and trace” surveillance powers. The reports show a dramatic increase in the use of these surveillance tools, which are used to gather information about telephone, email, and other Internet communications. The revelations underscore the importance of regulating and overseeing the government’s surveillance power.  (Our original Freedom of Information Act request and our legal complaint are online.)

Cell phone searches are a common law enforcement tool, but up until now, the public has largely been in the dark regarding how much sensitive information the government can get with this invasive surveillance technique. A document submitted to court in connection with a drug investigation, which we recently discovered, provides a rare inventory of the types of data that federal agents are able to obtain from a seized iPhone using advanced forensic analysis tools. The list, available here, starkly demonstrates just how invasive cell phone searches are—and why law enforcement should be required to obtain a warrant before conducting them.