The lusts of Internet love, the greed and gluttony of the mortgage meltdown, the sloth of those slow to address climate change, the wrath of the techno-warfare state and shock journalism, the envy of Wall Street fat cats and wheeler-dealers, and the immeasurable pride of Americans despite it all. These are the Seven Deadly Sins, circa America, 21st Century. "American Inferno" is a retelling of Dante's classic 700-year-old tale for the modern age,...