He pretended that he did not stand in the way of regulating the over the counter derivatives market when it was first suggested. In fact he killed it during the Clinton administration. He attempted to rewrite history. Trust me on this story. Greenspan just put blood in the water today. The true story of what happened will continue to come out. It was the over the counter derivatives that gave Freddie Mac & Fannie Mae their power.
Watch the Frontline piece. I guarantee it will be worth your time and bandwidth.