In case you were concerned that the beleaguered SUV and truck market doesn't have enough to worry about right now, here's a curveball: the Insurance Institute for Highway Safety is advocating new regs that would bring truck, SUV, and van bumpers down to the level of regular passenger cars. It might make for some funny-looking new SUV's, and would certainly take a bite out of the larger vehicles' ground clearance, one of their few remaining selling points. But it kind of makes sense: I'm sure it's no fun getting your radiator mashed into your engine, or all your rear lights smashed out, in the course of some minor collision with an SUV or truck simply because its bumper isn't the same height as yours. And the insurance companies aren't thrilled about the higher payouts that result from such accidents, either. What do you think? Should new bumper rules be imposed on new trucks and SUV's, or should the insurance companies (i.e., everyone who pays into a car insurance plan) just suck it up?