A large amount of our government was involved so the FBI destroyed the files to prevent them being leveraged against the US through said pedos.
I think we've severly underestimated the extent to which the government is compromised and the FBI was involved obviously but the sheer numbers would cause an uprising and end the US as we know it.
Just think about the orgies and shit they have in Washington and barely try to hide it.
The rot extends all the way here.