Import dependence for food rankles most politicians since they have persistently fed a nationalistic feedback loop on the issue to their constituents. No one is demanding that their television sets be manufactured locally, but food is national security and others can’t be trusted. This is especially true in China where President Xi Jinping has been preaching that local leaders must stop the conversion of farmland to non-agricultural uses for the sake of food security. Officials proclaim progress toward the goal, but some data tell a different story.  Overall Chinese arable land has been declining at a little under 1 percent per year. Despite Brazilian President Lula De la Silva’s commitment to reducing the loss of Amazonia...