Fannie Mae?

I actually just read it today. Here is the info:

The Federal National Mortgage Association, nicknamed Fannie Mae, and the Federal Home Mortgage Corporation, nicknamed Freddie Mac, have operated since 1968 as government sponsored enterprises (GSEs). This means that, although the two companies are privately owned and operated by shareholders, they are protected financially by the support of the Federal Government. These government protections include access to a line of credit through the U.S. Treasury, exemption from state and local income taxes and exemption from SEC oversight. A recent accounting scandal at Freddie Mac that resulted in the replacement of three of the company's top executives has led to mounting concerns over the privileged status these GSEs enjoy in the marketplace.
Fannie Mae was created in 1938 as part of Franklin Delano Roosevelt's New Deal. The collapse of the national housing market in the wake of the Great Depression discouraged private lenders from investing in home loans. Fannie Mae was established in order to provide local banks with federal money to finance home mortgages in an attempt to raise levels of home ownership and the availability of affordable housing.
Initially, Fannie Mae operated like a national savings and loan, allowing local banks to charge low interest rates on mortgages for the benefit of the home buyer. This lead to the development of what is now known as the secondary mortgage market. Within the secondary mortgage market, companies such as Fannie Mae are able to borrow money from foreign investors at low interest rates because of the financial support that they receive from the U.S. Government. It is this ability to borrow at low rates that allows Fannie Mae to provide fixed interest rate mortgages with low down payments to home buyers. Fannie Mae makes a profit from the difference between the interest rates homeowners pay and foreign lenders charge.
For the first thirty years following its inception, Fannie Mae held a veritable monopoly over the secondary mortgage market. In 1968, due to fiscal pressures created by the Vietnam War, Lyndon B. Johnson privatized Fannie Mae in order to remove it from the national budget. At this point, Fannie Mae began operating as a GSE, generating profits for stock holders while enjoying the benefits of exemption from taxation and oversight as well as implied government backing. In order to prevent any further monopolization of the market, a second GSE known as Freddie Mac was created in 1970. Currently, Fannie Mae and Freddie Mac control about 90 percent of the nation's secondary mortgage market.
GSEs such as Fannie Mae and Freddie Mae, with their combination of private enterprise and public backing have experienced a period of unprecedented financial growth over the past few decades. The current assets of these two companies combine for a total that is 45 percent greater than that of the nation's largest bank.

On the other hand, their combined debt is equal to 46 percent of the current national debt. It is this combination of rapid growth and over leveraging that has lead to the current concerns of Congress, the Justice Department and the SEC with regards to the financial practices of these GSEs.
Fannie Mae and Freddie Mac are the only two Fortune 500 companies that are not required to inform the public about any financial difficulties that they may be having. In the event that there was some sort of financial collapse within either of these companies, U.S. taxpayers could be held responsible for hundreds of billions of dollars in outstanding debts. A recent investigation by the Justice Department and the SEC into the accounting practices at Freddie Mac revealed accounting errors in the amount of 4.5 to 4.7 billion dollars and resulted in the termination of three of the company's top executives. Ongoing investigations by Congress, particular the House Finance Services subcommittee that oversees the activity of GSEs, will determine the future role of Fannie Mae and Freddie Mac and the secondary mortgage market that they dominate.

You may want to read more from these sites:

http://www.bloomberg.com/apps/news?pid=20601087&sid=a5Od.dvTeeyA&refer=home

http://hnn.us/articles/1849.html
http://latimesblogs.latimes.com/money_co/2008/07/fannie-and-fred.html