Can somebody explain fiscal and monetary policy using current day examples in the U.S.? thanks!?

The cause of the 2009 depression was due to the property loans that cannot pay back. It was the policy to stimulate people to buy property, got loans from the banks with low rate. The loans were rated by the insurance company and sold worldwide. But the bubble bursted. The insurance company went down first, followed by banks, and big company.The Wall Street went down, and unemployment rate went up. The government and the FED should begin with austerity and discipline. But they did the opposite. Creating more money supply and borrowing to bail out the financial institutions,helping people from the foreclosure, and creating employment in the public sector.The policy rate was approaching zero, to save investors. The health care bills to cover more millions of Americans was ped. Now we are talking about financial regulation bill.It should p soon. But we're still in Irag and Afganistan.