Prohibition Never Works

79 years ago today, the 21st Amendment ended the prohibition of alcohol, which had been enacted 13 years earlier with the 18th Amendment. Prohibition was a well-meaning government program intended to address the social, criminal, and health-related problems of alcohol abuse. But it turned out that prohibition created unintended consequences such as black markets, criminal trafficking, dangerous underground products, and a culture that demonized even responsible enjoyment of alcohol.

This should have been a lesson about prohibition more generally. Can you think of something else the government currently bans even for consenting adults in the "land of the free?"