The WTO made U.S. cotton subsidies illegal two years ago, but American farmers are still getting checks. African nations aren't happy about the imbalance and that's cooling wider trade talks. Gretchen Wilson reports.
In the 1970s and '80s copper prices plummeted worldwide and Zambia's mines closed, crippling that country's economy. Gretchen Wilson visits one mine that's now booming at the hands of Chinese investors.
Chinese Premier Wen Jiabao is in South Africa this week. China has been boosting its trade ties with Africa, but some are worried cheap Chinese imports might sink the local economy. Gretchen Wilson reports.