I was speaking with a fellow economist today and he reminded me of something he has said for a long time. "You can never get rid of risk." Yes, you can transfer it to others, hedge it (which is the same thing), mitigate it with a portfolio solution etc. but SOMEBODY still is bearing it.
This is a very important basic lesson that is playing itself out in the liquidity crisis which is beginning to make itself apparent in the mortgage markets. In short, when someone takes out a home mortgage, the money is supplied by banks who then sell the mortgages, usually with a guarantee provided by the government, to the secondary market.