Exactly 100 years ago, on Jan. 17, 1920, America’s liberal “progressives” imposed the “great experiment” of Prohibition. It was the culmination of the Left’s crusade to reshape human life.

After 13 disastrous years, Prohibition was abandoned. But that wasn’t to be the last experiment. Nowadays, the same arguments and attitudes lie behind attempts to control how we speak, what we write, read, and look at; how we hire; whether we smoke; and what we eat.