The following is an excerpt, as it appeared in The Guardian newspaper on Tuesday, from Glenn Greenwald’s latest book, , published on May 13, 2013 by Hamish Hamilton:

A prime justification for surveillance – that it’s for the benefit of the population – relies on projecting a view of the world that divides citizens into categories of good people and bad people. In that view, the authorities use their surveillance powers only against bad people, those who are “doing something wrong”, and only they have anything to fear from the invasion of their privacy. This is an old tactic. In a 1969 Time magazine article about Americans’ growing concerns over the US government’s surveillance powers, Nixon’s attorney general, John Mitchell, assured readers that “any citizen of the United States who is not involved in some illegal activity has nothing to fear whatsoever”.

The point was made again by a White House spokesman, responding to the 2005 controversy over Bush’s illegal eavesdropping programme: “This is not about monitoring phone calls designed to arrange Little League practice or what to bring to a potluck dinner. These are designed to monitor calls from very bad people to very bad people.” And when Barack Obama appeared on The Tonight Show in August 2013 and was asked by Jay Leno about NSA revelations, he said: “We don’t have a domestic spying programme. What we do have is some mechanisms that can track a phone number or an email address that is connected to a terrorist attack.”