Mr Snowden secured asylum in Russia and faces espionage charges from US authorities after he passed on classified files to journalists.
The former IT contractor says he feels vindicated, given the leaks have prompted a global reaction and a strong political debate in the US.
Washington correspondent John Stempin has told Michael Kenny Mr Snowden has been seriously considering what legal options he could pursue if he returned home.
(Click on audio tab above to hear full item)
Share

