coke or grass or heroin come through their stations—$30,000 a carload, no matter what’s in it. And still, there’s no way to guarantee that your car is going to go through a “clean” checkpoint, even though you’ve bought condo buildings whose top floors overlook the crossing stations and you have lookouts up there who are in radio contact with your drivers and try to steer them toward the “right” lanes. But the Customs agents are switched often and arbitrarily, and other agents are monitoring radio bands, so if you send a dozen cars at a time through the border crossings at San Ysidro and Otay
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