Is it possible for a nation to go from wide-open freedom for a civil liberty, to near-total destruction of that liberty, in just a few decades? "Yes," warn many American civil libertarians, arguing that allegedly "reasonable" restrictions on civil liberty today will start the nation down "the slippery slope" to severe repression in the future. In response, proponents of today's reasonable restrictions argue that the jeremiads about slippery slopes are unrealistic or even paranoid.

This Essay aims to refine the understanding of slippery slopes by examining a particular nation that did slide all the way down the slippery slope. When the twentieth century began, the right to arms in Great Britain was robust, and subject to virtually no restrictions. As the century closes, the right has been almost obliterated. In studying the destruction of the British right to arms, this Essay draws conclusions about how slippery slopes operate in real life, and about what kinds of conditions increase or decrease the risk that the first steps down a hill will turn into a slide down a slippery slope.