The Senate Banking, Housing and Urban Affairs Committee may not be moving any closer to a decision on reforming the mortgage finance system, but lawmakers should be getting well versed in the various analytic perspectives on the role of the federal government. At a hearing this week, the committee heard testimony from researchers who support winding down Fannie Mae and Freddie Mac as soon as possible and others who say private capital wont be drawn back into the system unless there is a government guarantee. Theres absolutely no reason to believe that private capital would immediately step-up even if it would eventually...