To hear the news report it, the migrant caravan is just a spontaneous uprising of women and children fleeing Honduran gangs, and the issue is one of Mexico and the U.S. diplomacy finding a way to accommodate them. What's lost is just how hard, hard, left the organizers of what has become this humanitarian disaster are. Even the leftist liberation-theology-oriented rifles-and-cassocks crowd are is getting concerned. Their agenda is hard-left, pro-Chavista, and drawing the fringiest leftwing groups. It's not a humanitarian mission in the slightest to them, it's a by-any-means-necessary political mission. A look at the caravan organizers and their...