Two Keynesians vs. Two Austrians

"Brad DeLong thinks Mario Rizzo is a “psychopath” (actual quote) for recommending that people don’t tip NYC cab drivers; DeLong recommends (obviously tongue in cheek) strip-searching “these people” (by which he means Austrians, I think, and not Italians) whenever visiting one’s house. Brad DeLong also thinks I’m nuts for saying that it would be immoral for the government to take money from people against their will and use it to fund the destruction of a killer asteroid."