Andrew: The dramatic increase in population that David Brooks was so lusciously optimistic about isn’t due to “natalism” at all, but to the federal immigration program. Using a slightly different time span, my colleague Steve Camarota has calculated that between 2007 and 2060, the U.S. population, under current immigration policies, would increase to 468 million, 100 million of whom (63 percent of the increase) would be future immigrants and their progeny. The issue is not whether Americans are or aren’t having babies, which is really none of anybody’s business; instead, it’s Congress engaging in social engineering through immigration policy.