The oil industry gets a lot of attention, but for my money the most powerful lobby in U.S. politics is agriculture. Between commodity crops and meat, the sector is huge. Plus, the very makeup of the U.S. political system, with lightly populated rural states getting disproportionate power in the Senate, ensures that agricultural interests will almost always get a friendly hearing in Congress, no matter which party is in power. And farming has always had a special place in the American psyche, even though fewer than 2% of Americans farm for a living these days. Let’s put it this way: it’s practically a patriotic duty to hate Big Oil, no matter your political persuasion. Big Ag, I suspect, is much less unpopular, even after muckraking works like Fast Food Nation and Food Inc.