The United States plans to double aid-for-trade grants to devleloping countries to $2.7 billion per year by 2010, a U.S. government spokeswoman said on Wednesday. She said U.S. Trade Representative Rob Portman (news, bio, voting record) would announce the proposed increase in a speech on Wednesday to the World Trade Organization (WTO) meeting in Hong Kong. The U.S. offer to increase the grants its provides developing countries to boost their exports is part of a proposed trade deal to open up agriculture, goods and services markets around the world. The United States provided $1.34 billion in aid-for-trade grants in 2005,...