Question about the Fed's action

[presskh]

Ok all you economic gurus out there - someone explain to me how the Fed's action yesterday solves the problems. If the Fed is just lending and accepting AAA mortgages and other instruments as collateral for 28 days, what happens in 28 days when the financial institutions have to take all of the instruments back? Several of the pump monkeys on CNBC were saying how yesterday fundamentally changed the market's direction - maybe I'm dense, but I don't see how this solves the problems with falling home equities, out-of-control oil prices, and a host of other drags on the economy.