WASHINGTON — In one of the Federal Reserve Board's most expensive endeavors yet to resuscitate financial markets, the central bank said Tuesday that it will work with the Obama administration to lend up to $1 trillion against consumer-related securities.

The plan makes the Term Asset-Backed Securities Loan Facility's price tag five times as large as the $200 billion the Fed initially committed when the program was announced in November. The Treasury Department is quintupling its stake, to $100 billion.

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