Mexico got tough with the U.S. today, raising tariffs on $2.4 billion in U.S. exports to retaliate for the ending of a pilot program that allowed illegal Mexican day laborers to wait on U.S. curbs for work. President b. Hussein, in his first big trade policy test, immediately wimped out, issuing an executive order that gives a tax break to any American employer who pulls their pickup into the parking lot of a Mexican grocery and flashes five fingers on one hand, then all 10 fingers twice. (Translation: “Five laborers needed, at $20 an hour.”) Tax breaks will be calculated...