NSA: Snowden May Have Leaked up to 200,000 Files

But they don't actually know

Edward Snowden leaked as many as 200,000 classified U.S. documents to the media this year, according to NSA chief Gen. Keith Alexander.   

Alexander made the comments after a speech in Baltimore last month, Reuters reported Thursday. The news service obtained a copy of the October event's transcript from the National Security Agency.

"I wish there was a way to prevent it. Snowden has shared somewhere between 50 [thousand] and 200,000 documents with reporters. These will continue to come out," Alexander said, according to the report.