Facebook founder Mark Zuckerberg and Google co-founder Larry Page have responded to media reports on the Internet surveillance program PRISM. Both deny having any knowledge of the program before yesterday and say that they have given no one ?direct access to our servers.? A top-secret document obtained by The Washington Post describes Facebook and Google as corporate partners in a program that allows the National Security Agency and the FBI to track foreign targets by collecting data directly from Internet companies? servers. Several companies named in the document have denied involvement in PRISM. ?It is possible that the conflict between the PRISM slides and the company spokesmen is the result of imprecision on the part of the NSA author,? authors Barton Gellman and Laura Poitras explain. ?In another classified report obtained by The Post, the arrangement is described as allowing ?collection managers [to send] content tasking instructions directly to equipment installed at company-controlled locations,? rather than directly to company servers.?