Remember that immigration reform bill that’s attempting to crawl through the congressional minefield? Back in January, I was critical of the bill, because it seems to presume that reducing immigration numbers is still a desirable goal. I argued that the bill over-emphasized border security at the expense of encouraging immigration, and that increasing immigration was fundamentally advantageous to economic growth, that immigrants contribute more to the economy than they consume in public services. At the time, my view was predominately theoretical. Now, however, we have empirical data. The non-partisan and generally trustworthy Congressional Budget Office (CBO) has released a report in which it predicts that immigration reform would shrink the deficit by $197 billion.