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. This likely includes copies of almost all of the emails sent and received from most people living in the United States. Binney talks about Section 215 of the USA PATRIOT Act and challenges NSA Director Keith Alexander’s assertion that the NSA is not intercepting information about U.S. citizens.