The UK’s Prevent program, which is supposed to be protecting the Sceptered Isle from terrorism, recently came under fire for treating actual Islamic terrorism as if it were a mental illness. But that doesn’t mean that Prevent has been wanting for terrorists: like its counterparts in the FBI, it has kept busy looking for “far-right extremists” and has now published a helpful guide to spotting those dangerous right-wingers. It turns out that they’re people who read Beowulf, Chaucer, Shakespeare, Milton, 1984, and other great works of English literature. Gee, you’d almost get the idea that the Leftist culture warriors who...