In Mexico, farm activists have ended a thirty-six-hour blockade of the U.S.-Mexico border to protest the lifting of the last of its protective tariffs on northern goods. A Mexican tax on basic crops, including corn, beans and sugar, from Canada and the U.S. ended January 1st under the North American Free Trade Agreement, or NAFTA. Critics say NAFTA has devastated Mexican farmers by forcing them to compete with government-subsidized American and Canadian goods.