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.

Jacob Appelbaum, a computer researcher who has faced a stream of interrogations and electronic surveillance since he volunteered with the whistleblowing website, WikiLeaks, describes being detained more than a dozen times at the airport and interrogated by federal agents who asked about his political views and confiscated his cell phone and laptop.