Edward Snowden urges public to always question justification for invasions of privacy 

US intelligence whistleblower, Edward Snowden, has suggested that threats of terrorism, which are increasingly being used by politicians to justify invasions of privacy, are on the whole illusory.

Speaking today via video link at the Cyber Threat Summit at the Helix in DCU Mr Snowden urged those in attendace and the wider public to always question powerful institutions and established authority.