“U.S. agencies collected and shared the personal information of thousands of Americans in an attempt to root out untrustworthy federal workers that ended up scrutinizing people who had no direct ties to the U.S. government and simply had purchased certain books. The officials distributed a list of 4,904 people to nearly 30 federal agencies, including the Internal Revenue Service, the CIA, the National Security Agency and the Food and Drug Administration. The unprecedented creation of such a list and decision to disseminate it widely demonstrate the ease with which the federal government can collect and share Americans’ personal information, even when there’s no clear reason for doing so.”
http://www.mcclatchydc.com/2013/11/14/208438/americans-personal-data-shared.html