America has had a long love affair with cowboys. We picture them riding, roping, and ranching and just swoon. But we don’t like thinking about what happens to the cattle they’re tending, and how these critters wind up as the millions of burgers sold by McDonalds. To go from cows on the hoof to burgers on the bun, you need a slaughterhouse. A new one has been proposed for the edge of Lake Okeechobee, and it’s creating a lot of waves.