The FBI is investigating whether counterfeit routers and computer hardware from China installed in U.S. government computer networks might provide a secret gateway for hackers to tap into secure government databases. Sources told ABC News the counterfeit hardware could represent a major breach to national security. An FBI PowerPoint presentation, which somehow ended up on a Web site, lays out the concerns and the breadth of what has been a far-reaching investigation. Friday afternoon a somewhat miffed FBI released a statement that read: "At the request of another federal government agency, on Jan. 11, 2008, the FBI's Cyber Division provided an unclassified PowerPoint presentation and briefing on efforts to counter the production and distribution of counterfeit network hardware," said FBI Cyber Division Assistant Director James Finch. "This unclassified briefing was never intended for broad distribution or posting to the internet."