Question:

Since roads today are not privately owned, should we call for laws against drunk driving?

Answer:

My personal belief is that these laws do more harm than good. Instead, I’d prefer to see reckless or careless drivers pulled off the road, whether they are under the influence of alcohol, drugs, sleep loss, medication, or emotions that distract them from safe driving. The libertarian philosophy permits defensive measures when force is threatened (e.g., you can defend yourself against me if I point a gun at you but haven’t fired yet). Reckless driving could qualify as the threat of force.