Some unusual suspects among banks awaiting stress testing

Among the 19 financial institutions subject to "stress tests" by the Treasury Department are some companies few people think of as banks. GMAC, American Express (AXP), and MetLife (MET) will join JP Morgan Chase (JPM), Bank of America (BAC), Wells Fargo (WFC) and about a dozen other financial institutions scheduled for balance sheet examinations, Bloomberg News is reporting.

Wait, you say, when did American Express become a bank?