Free trade remains key need

The Wall Street Journal has an article by Mary Anastasia O'Grady arguing that Latin America's main desire is free trade.

O'Grady says free trade is the "single most important policy issue in the campaign."

McCain has steadily promised to expand free trade with South America. Obama, she said, argues more for a protectionist policy.

She said protectionism will further isolate Latin America from the United States, blocking imports and ideas from the region at an important time.

The article also brings in some history of free trade. Read it here.