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FILE - This July 16, 2012 file photo shows the Yahoo headquarters in Sunnyvale, Calif. In the era of intense government surveillance and secret court orders, a murky multimillion-dollar market has emerged. Paid for by U.S. tax dollars, but with little public scrutiny, surveillance fees charged in secret by technology and phone companies can vary wildly. While Microsoft, Yahoo and Google won't say how much they charge, the American Civil Liberties Union found that email records can be turned over for as little as $25. (AP Photo/Paul Sakuma, File)