Greenspan recently warned that Fannie Mae and Freddie Mac are overextended, like the rest of America. What Fannie Mae and Freddie Mac do are to take US mortgages and bundle them and to sell them as securities. Greenspan warned that
"Greenspan warned that as Fannie Mae and Freddie Mac increase in size relative to the Wall Street firms that help them hedge risk, their ability "to quickly correct the inevitable misjudgments inherent in their complex hedging strategies becomes more difficult." Forbes.com, article by Virginia Citrano. See above link.
Econo-Girl's concern is with the attacks of Mother Nature on our Gulf shores, many people will not be paying their mortgages back. What effect would this have on Freddie's and Fannie's ability to provide low-cost mortgages to Americans? And what will that do, in turn, to the housing market?