Argentina -- Aqui Vamos Otra Vez: Supermarkets in Argentina have been asked by the government to voluntarily freeze food prices in 2013. Buenos Aires hopes to both placate consumers and convince the IMF that there is no inflation. Farmers in Argentina have seen this play before and warn the actual result will be food shortages. They predict that meat will be hit first, but eventually it could lessen enthusiasm for planting corn and wheat. Soybeans will be less impacted. Moreover, the IMF is unlikely to be impressed.Separately, the U.S. has restricted citrus imports from both Argentina and Uruguay for many years due to sanitary and phytosanitary (SPS) concerns, but USDA has just proposed lifting the ban for Uruguay. Perhaps Washington has...