Fannie Mae late last week dusted off a 15-year-old controversy when it announced a relatively modest plan to provide $10 billion in financing for home builders over the next decade. In a speech at the annual convention of the National Association of Home Builders, Fannie Mae CEO Daniel Mudd said the government-sponsored enterprise plans to ramp up its acquisition, development and construction program as part of its American Dream Commitment. He said Fannie has helped…