US spying 'deeper under Obama'

Edward Snowden, US contractor who exposed the US Government's who leaked evidence of snooping, has said the US snooping "deepened" since President Barack Obama was elected in an internet Q&A.

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Snowden denies giving China classified information

Edward Snowden, who revealed he was the source of leaked information about US government surveillance programmes, denied having given classified information to China.

"I have had no contact with the Chinese government", Snowden said during a live chat on the Guardian website. "I only work with journalists".

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