In the fall of 2005, at the shuttle terminal of New York’s LaGuardia airport, I entered the security line and noticed, in front of me, a slight and slightly stooped older woman. After a couple of blinks, I recognized Joan Didion.
We’re a worried bunch, we Americans. We’re anxious. We’re gloomy, even doomy. We’re angsty, despairing, depressed. There’s a widespread sense that things are certainly not right with the world, and perhaps not right with us. If Dickens were...