Commerce: For an administration that touts "export-led growth," it's a bad sign to see huge markets in Europe and Brazil pulling up the drawbridges over the one-sided U.S. policy. "Trade" means imports, too. Brazil announced Tuesday that it would slap $830 million in tariffs on 102 U.S. products, ranging from cars to potatoes to medical gear. The deal was based on a 2005 World Trade Organization ruling against U.S. cotton subsidies. The U.S. had