The debate in Washington over reforming America's immigration laws has produced not only heated rhetoric but a few fantastic claims. Few are wilder than a prediction from a well-known think-tank that the reform bill just passed by the Senate will result in 103 million legal immigrants to the United States during the next 20 years. In a "Web Memo" from the Heritage Foundation, author Robert Rector claims that the Hagel-Martinez immigration bill (S. 2611) would unleash a flood of chain migration that would overwhelm America's capacity to absorb so many people. He calculates that the bill would not only allow...