To everyone who is celebrating Christmas today, I hope it is a happy and safe one. Party it up and get trashed, but please don’t get behind the wheel; call a friend, call a cab. In 2006, an estimated 17,602 people died in alcohol-related traffic crashes—an average of one every 30 minutes. These deaths constitute 41 percent of the 42,642 total traffic fatalities. Of these, an estimated 13,470 involved a driver with an illegal BAC (.08...