The erudite James Surowiecki brings his journalistic skills to the problem of a banking system that has subsumed the its own watchdogs, in The New Yorker:
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In order to work well, markets need a basic level of trust. As Alan Greenspan said, in 1999, “In virtually all transactions we rely on the word of those with whom we do business.” So what happens to a market in which the most fundamental assumptions turn out to be lies? That is the question in a scandal that has roiled the banking industry all summer. The LIBOR (London Inter-bank Offered Rate) index is the most important set of numbers in the global financial system. Used as a benchmark for interest rates around the world, it’s assembled by asking a panel of big banks to estimate what it would cost them to borrow money today, if they had to. Hundreds of trillions of dollars in derivatives, corporate loans, and mortgages are pegged to these rates.