“This bill is the most important legislation for financial institutions in the last 50 years. It provides a long-term solution for troubled thrift institutions. ... All in all, I think we hit the jackpot.” So declared Ronald Reagan in 1982, as he signed the Garn-St. Germain Depository Institutions Act.

He was, as it happened, wrong about solving the problems of the thrifts. On the contrary, the bill turned the modest-sized troubles of savings-and-loan institutions into an utter catastrophe. But he was right about the legislation’s significance. And as for that jackpot — well, it finally came more than 25 years later, in the form of the worst economic crisis since the Great Depression.