“Does it matter whether booty comes from good wars or bad ones, from evil owners or helpless ones, from public places or obscure corners and rich men’s vaults? In principle, the answer should be, ‘No, it doesn’t matter.’ But Germany in World War II stole art from its victims; the Soviets then looted Germany when their troops overran Berlin. In Germany’s case, it’s considered a war crime. Russians insist their actions were just revenge.”