If you thought the health care bill was just about, well, health care, guess again! It's about income redistribution as much as anything: For all the political and economic uncertainties about health reform, at least one thing seems clear: The bill that President Obama signed on Tuesday is the federal government’s biggest attack on economic inequality since inequality began rising more than three decades ago. Over most of that period, government policy and market forces have been moving in the same direction, both increasing inequality. The pretax incomes of the wealthy have soared since the late 1970s, while their tax...