Here is Megan McArdle's succinct take on Walmart's endorsement of government-andated health coverage (HT: Sheldon Richman). The story was front-page news in yesterday's Wall Street Journal, and today the Journal editorializes--correctly, I think--on the hidden politics of the move. I'm skeptical of the company's ominous claim about wanting a "level playing field;" the public choice literature suggests that "leveling the playing field" via government action usually means "kneecapping potential competitors with legislation."