Alas, I have to use this neologism of “enclosement” to deal with an issue that disturbs too few people. But it immensely disturbs those of us it concerns. Basically, this is the question: Where are the public intellectuals—the artists, poets, scientists—who allow themselves to lose sleep over the state of the world? Where are the protesters, the professors, the students? Where is public at large? My answer would be that they are nowhere to be found. In this world where airplanes have...