William Snyder has a nifty article in Wired:
The mission of a motorcade is simple: Deliver the package safely and on schedule. That means avoiding everything from rush hour to dirty bombs. And, not surprisingly, there's some science to optimizing the armed caravan, whether it's a 40-vehicle convoy carting the president or a drug lord's four-SUV private platoon dodging the DEA. Here is the feng shui of motorcade layout.
Read the rest here. It's not deep, it won't save the world, and you can't eat it. But, hey, it's Sunday. Live a little.