The Fed, headed by Chairman Ben S. Bernanke, argued that revealing borrower details would create a stigma — investors and counterparties would shun firms that used the central bank as lender of last resort — and that needy institutions would be reluctant to borrow in the next crisis. Clearing House Association fought Bloomberg’s lawsuit up to the U.S. Supreme Court, which declined to hear the banks’ appeal in March 2011.

$7.77 Trillion

The amount of money the central bank parceled out was surprising even to Gary H. Stern, president of the Federal Reserve Bank of Minneapolis from 1985 to 2009, who says he “wasn’t aware of the magnitude.” It dwarfed the Treasury Department’s better-known $700 billion Troubled Asset Relief Program, or TARP. Add up guarantees and lending limits, and the Fed had committed $7.77 trillion as of March 2009 to rescuing the financial system, more than half the value of everything produced in the U.S. that year.

“Secret Fed Loans Helped Banks Net $13 Billion.” — Bob Ivry, Bradley Keoun, Phil Kuntz, Bloomberg News

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