Driverless trucks and cargo security

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If truck drivers are getting mugged and robbed for the cargo they are transporting, does the driverless truck/car manufacturers have a way to address cargo security issues? Are goods supposed to be more secure without a human (the driver) in the truck or isn't the cargo more exposed to being attacked? It seems like insurance premiums may go through the roof if importing or exporting expensive cargo by ground to/from Mexico or Canada.