He has also encouraged a parliamentary select committee to investigate whether the Guardian has broken the law or damaged national security in its reporting.
Thomas Hughes, executive director of Article 19, said Cameron’s response had been to shoot the messengers.
“Edward Snowden, David Miranda, Glenn Greenwald and the Guardian are being painted as the villains of this piece. They are being targeted for raising a matter of serious public interest. This seems to be a convenient distraction from what might otherwise be a story about state overreach and inadequate oversight of power,” Hughes said.