"Fannie Mae and Freddie Mac are in trouble. That much even the occasional reader of newspaper headlines knows. But who are they, exactly, and what have they done to prompt the federal government to announce it was standing by with a possible multibillion-dollar bailout?"
Relationship between low downpayments and delinquencies or defaults on mortgages
"The close relationship between low downpayments and delinquencies and defaults on mortgages is shown in Figure 5, which compares the increase in FHA 97 percent (or greater) CLTV [combined loan-to-value] or LTV [loan-to-value] mortgages to the increase in the foreclosure start rate on all loans published by the Mortgage Bankers Association."