That was why Jamie Gorelik was put on the 9/11 Commission, to keep evidence incriminating the Clintoon administration out of the report. Since she was responsible for the "wall" between FBI and CIA investigations, no doubt to keep nosy agencies off the trail of all of Clinton's foreign contributors, she also had a personal interest in deflecting that feckless committee. God bless Congressman Weldon for bringing this to light. He'd better watch his back...
That's not the first wall she erected, just the first one that worked.