Treason or Murder
The bill contains substantial support for biofuels, including a five year moratorium on letting the EPA decide whether, on net, producing ethanol actually reduces carbon dioxide. Converting food crops into fuel drives up the price of food. Driving up the world price of food results in more people in poor countries dying. Krugman is, no doubt, opposed to world hunger in theory. But he has come out passionately in favor of it in practice.
Treason or murder, take your choice.