Drunk driving is treated like a terrible crime, and in some ways, that's understandable. Obviously the act of getting behind the wheel when you are not sober is negligent, and the person responsible for such an act shouldn't have done it. However, this doesn't mean these individuals aren't entitled to their defense, nor does it mean they don't have a case. In addition, compared to other actions that people perform while driving, drunk driving leads to extremely excessive punishment.
A prime example of this is drowsy driving. Did you know that people who are drowsy cause at least 100,000 motor vehicle accidents every year in the United States, according to the National Highway Traffic Safety Administration? And yet drowsy driving isn't met with hefty fines, jail time, loss of license or some sort of ignition device.