The mainstream press mindlessly repeats the mantra that Fan and Fred perform a “vital” role in making the dream of home ownership a reality for the lower middle class — increasing market liquidity and thus keeping mortgage rates low. In fact, these quasi-government entities have what is at best a marginally depressive effect on mortgage rates. To create such an artificial effect — however imperceptible — is not a good idea at all; but even if you think it is arguably beneficial, the benefit is palpably not worth $5 trillion in liabilities. And if the mortgage crisis has taught us anything, it is that: without any government intervention, lenders and borrowers will innovate mortgage arrangements; borrowers shouldn’t be encouraged to buy homes they can’t afford; and private/public entities are apt to pour gasoline on a fire.