The editors of the Washington Post debunk a so-called "study" by the Heritage Foundation regarding the costs of immigration reform. In a real study, at a real think tank, you try and examine all the data, not only the data that helps you whip up passions. Heritage again demonstrates that it is an advocacy organization pursuing a political agenda, not a think tank trying to ascertain the truth of the matter. And, our friends at the National Catholic Bioethics Center should refrain from inviting any "experts" from the Heritage Foundation in the future, unless they are balanced by a similar advocacy group on the left. If you want analysis, call Brookings. If you want a campaign bumper sticker, call Heritage.