This particular sizable chunk of wisdom is from a Facebook post that Bob Higgs put up a few hours ago. Here it is in full:
When libertarians (or simply people with common sense) argue against proposals to solve a certain class of perceived problems (e.g., mass murders by odd-ball lunatics or crazed zealots) by imposing more stringent government controls, closer surveillance, and so forth, the proponents often reply: well, if you don’t think my idea for government action will work, what do you propose instead to solve the problem? They are never happy when told that a better idea is to do nothing to solve it.
Yet, in truth, problems of a certain sort (e.g.,mass murders by odd-ball lunatics or crazed zealots) do not have a solution in anything even close to a free society. These types of problems involve such unsystematic, infrequent, and inexplicable actions that no one can anticipate and preempt them. Lighting will strike people sometimes; nothing can be done about it except to advise people to stay inside during thunder storms and in no event to go outside carrying an iron rod.
So, one might propose, for example, that the U.S. government stop blundering around in the Middle East carrying the “iron rods” that will attract the lightening of aggrieved Muslims whose friends, relatives, or causes have been harmed or killed by American actions. Absent such general palliatives, one must simply resign himself to the reality that occasionally — albeit very, very infrequently — bad things will happen. Even locking every human being in a cell will not solve such problems, either, because bad things happen in prisons, too. Indeed, nearly everything that happens in a prison or an unfree society is bad.