Prowling these border dumps provides the equivalent of a graduate-level seminar on what illegal immigration really is, and as importantly, what it's not. We know the crossers are a religious bunch, because of the Catholic medallions, statues and Bibles they drop, and we know they're superstitious. The litter almost always includes garlic cloves: Illegals hang them from backpacks in the false belief that the scent will keep rattlesnakes away from their campsites. Some call illegal aliens "undocumented," but the truth is they have documents falling out of their pockets, literally. Examine the ground, and you'll find driver's licenses, birth certificates...