If you own a sports utility vehicle, you live in sin. At least that's what the Rev. Jim Ball and his group, the Evangelical Environmental Network, would have you believe. And they've set out to make sure people become aware of this little-known sin through some controversial ads, which ask, "What Would Jesus Drive?" Are they on to something? After all, 52 percent of the new vehicles purchased in America these days are SUVs. Under current federal laws, a passenger car must get 27.5 miles for the gallon, but an SUV needs to get only 20.7 miles a gallon. Transportation...