NYT yesterday:

Gov. Rick Perry of Texas on Monday ordered 1,000 National Guard troops to the border with Mexico, seizing on a get-tough immigration message that foreshadows the approach to the current crisis by his party in Congress and that could position him in another bid for the Republican presidential nomination.

Mr. Perry announced the move at the Texas Capitol, but many of the intended recipients were far away from here: members of Congress in Washington, including those who are fighting with President Obama; potential migrants in Central America who are contemplating a dangerous journey to the United States; and presidential caucus voters in Iowa, where Mr. Perry visited again over the weekend.

But let's get real and return to a story, "For Medicare, Immigrants Offer Surplus, Study Finds," that appeared in the NYT a year ago:

The study, led by researchers at Harvard Medical School, measured immigrants’ contributions to the part of Medicare that pays for hospital care, a trust fund that accounts for nearly half of the federal program’s revenue. It found that immigrants generated surpluses totaling $115 billion from 2002 to 2009. In comparison, the American-born population incurred a deficit of $28 billion over the same period.

The reason for this is simply immigrants are younger and so do not take more out of the health system than they put in to it. The median age of Hispanics, the largest immigrant group in the US, is 27. The median age for standard white Americans is 42. In short: Deporting those kids in Texas is actually an act of national madness. And those who are holding long-term Treasury bonds need to assess the real future value of those assets against the current rate of deportations. Each young person who is deported equals a person who is not around in the future to pay the ballooning medical expenses of an aging and retiring white population that spent a hella time doing nothing but sitting in cars.