The FDIC and taxpayers are the underwriters of too much private risk taking, and the U.S. financial system should be strengthened by simplifying its structure and making its institutions more accountable for their mistakes, according to a commentary today by FDIC director Thomas M. Hoenig in the Wall Street Journal. Hoenig's proposal would help prevent another 2008-style crisis by prohibiting banking organizations from conducting broker-dealer or other trading activities and by reforming money-market funds and the market for short-term collateralized loans (repurchase agreements, or repos). Before 1999, U.S. banking law kept banks, which are protected by a public safety net (e.g., deposit insurance), separate from broker-dealer activities, including trading and market making. However, in 1999 the law changed to permit bank holding companies to expand their activities to trading and other business lines. Similarly, broker-dealers like Bear Stearns, Lehman Brothers, Goldman Sachs and other "shadow banks" were able to use money-market funds and repos to assume a role similar to that of banks, funding long-term asset purchases with the equivalent of very short-term deposits.