The consensus on Alan Greenspan's performance as Fed chair used to be extremely positive, but more and more it's been called into question. Now, 2008 has seen Ben Bernanke in the eye of a storm that was created largely during Greenspan's tenure. His management of the bubble of all bubbles will be a decisive factor in whether this crisis will be limited in its impact on the real economy or whether it directly leads to a major recession. This is Bernanke's...