FBI Probe of JPMorgan Fees Focuses on Swaps Roiling Muni Debt

While JPMorgan has been relatively unscathed by the subprime crisis that hit Bear Stearns Cos., Merrill Lynch & Co., Lehman and other Wall Street firms, a little-known part of the largest bank in the U.S. made a tidy profit peddling a different kind of corrosive debt to hundreds of counties and school districts earlier this decade.

As the credit crunch froze lending globally, causing stock markets to plunge, local officials who say they trusted JPMorgan faced a crisis of their own. Wall Street's drive for profits over the past decade has backfired on towns, cities and counties that borrow in the $2.7 trillion municipal bond market.

Financings arranged by JPMorgan and other banks are forcing hundreds of public agencies to spend billions of dollars they don't have to pay for increased interest payments and penalties.

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