My computer hard drive crashed NSA won't send me their backup copy ! National Security Agency whistleblower William Binney reveals he believes domestic surveillance has become more expansive under President Obama than President George W. Bush. He estimates the NSA has assembled 20 trillion "transactions" — phone calls, emails and other forms of data — from Americans.
Source : http://www.democracynow.org/2012/4/20/whistleblower_the_nsa_is_lying_us