"filed records requests with the FBI to see if the bureau had other informants in the media, as well as places such as congressional offices, courts, churches, other government agencies and even the White House.
"I thought they'd come back and say, 'We would never do that because that would be illegal and unconstitutional,'" he said. "Instead, they came back and said, 'Yeah, we do that. We have manuals on that, but you can't have them because of national security.'"
