In an interview with The New York Times, Snowden said he handed over all the documents he had obtained to journalists during his stay in Hong Kong. The newspaper posted its story on its website Thursday.

 

Snowden said he did not retain copies of the documents and did not take them to Russia "because it wouldn't serve the public interest," the Times reported. He said his familiarity with China's intelligence abilities allowed him to protect the documents from Chinese spies while he was in Hong Kong.

 

"There's a zero percent chance the Russians or Chinese have received any documents," he said.

 

Snowden's leaks of highly classified material have resulted in numerous news stories about US surveillance activities at home and abroad and sparked debate about the legality of those activities and the privacy implications for average Americans.

 

The Times reported that in the interview, which it said took place over several days in the last week and involved encrypted online communications, Snowden asserted that he believed he was a whistle-blower who was acting² in the nation's best interests by revealing information about the NSA's surveillance dragnet（搜索网） and huge collections of communications data.

 

Snowden said that he had helped US national security by prompting a badly needed public debate about the scope of the intelligence effort. "The secret continuance of these programs represents a far greater danger than their disclosure（披露）," he said.

 

Snowden faces espionage³ charges in the US On Aug. 1 he was granted asylum⁴ in Russia, which is allowing him to remain there for one year.

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