US accuses China of limiting crop imports in violation of WTO rules: http://www.wsj.com/articles/u-s-challenges-china-anew-over-rice-wheat-corn-barriers-1481815801 The Obama administration announced a new challenge over Beijing’s barriers to American rice, wheat and corn, attacking a policy that U.S. officials say prevented as much of $3.5 billion in agriculture shipments to China. U.S. trade lawyers accused China Thursday of improperly administering a program designed to put limits on grain imports to the country, violating international agreements. …the U.S. says Beijing appears to be operating its complicated import barriers known as tariff-rate quotas, or TRQs, in ways that disadvantage U.S. growers through lack of transparency and unreasonable implementation.