William Binney (U.S. intelligence official)
After he left the NSA in 2001, Binney was one of several people investigated as part of an inquiry into the 2005 New York Timesexposé[11][12] on the agency’s warrantless eavesdropping program. Binney was cleared of wrongdoing after three interviews with FBI agents beginning in March 2007, but one morning in July 2007, a dozen agents armed with rifles appeared at his house, one of whom entered the bathroom and pointed his gun at Binney, still towelling off from a shower. In that raid, the FBI confiscated a desktop computer, disks, and personal and business records.
.. During interviews on Democracy Now! in April and May 2012[14] with elaboration in July 2012 at 2600’s hacker conference HOPE[4] and at DEF CON a couple weeks later,[15]Binney repeated estimates that the NSA (particularly its Stellar Wind project[16]) had intercepted 20 trillion communications “transactions” of Americans such as phone calls, emails, and other forms of data (but not including financial data). This includes most of the emails of US citizens. Binney disclosed in an affidavit for Jewel v. NSA[17] that the agency was “purposefully violating the Constitution”.[6] Binney also notes that he found out after retiring that the NSA was pursuing collect-it-all vs. targeted surveillance even before the 9/11 attacks.