According to those just-released visitor logs, Alan Greenspan, the former Fed chair who many blame for laying policy groundwork that contributed to the financial crisis, has visited the Obama White House six times in the past nine months.

Those included a one-on-one visit with top Obama economic aide Larry Summers and two meetings with Peter Orszag, accompanied by one other visitor.

Greenspan delivered something of a mea culpa one year ago this month, telling Congress he was in a "state of shocked disbelief" as to why banks didn't look out for their own interests when it came to the mortgage market.

He also came under fire from the Obama campaign in September 2008 after comments he made about potential tax cuts.