I pull out my phone and check the Centers for Disease Control and Prevention website, which tells me that, in the United States, 636,000 people have died since the epidemic began. That's 23 times higher than Germany, for a country with four times the population. This makes no sense. Germany has big cities, it has gay men and sex workers and drug users, it has all the same temptations for them to be uncareful that the United States does. How could so many fewer people have died? (Michael Hobbes, 5/12).