The FHA's success provides strong evidence that government can and should play a role in the nation's mortgage finance system. It also demonstrates that although government intervention in the economy during the Great Recession was messy, things would have been a lot messier without it.

Predicting recessions is indeed a dark art, but I think we are several years away from the next one.

Buying a home wouldn't make much sense if house prices were likely to decline further; no one wants to catch a falling knife.

Too-easy credit and millions of bad loans made during the U.S. housing bubble paved the way for the financial calamity and Great Recession that followed. Today, by contrast, credit is too tight. Mortgage loans are particularly hard to get, creating a problem for the housing market and the broader economy.

Our economy isn't going to recover until the housing market finds its footing.

A housing renaissance has begun. This may be hard to believe after the dizzying, six-year-long crash in home sales, construction and house prices. But housing turned the corner last year, and it will take off in 2013.

It has become fashionable to rail against government intervention in the economy, and the FHA is a favorite example by those trying to show the government's overreach. In reality, the FHA shows how government action during the Great Recession forestalled a much worse economic fate.