April 3, 2008 - ...on trade stanceBOGOTA, Colombia - Colombia's president sharply criticized U.S. presidential contender Barack Obama on Wednesday for opposing a trade deal with his country, calling him out of touch with the realities of the South American nation.The White House is urging Congress to approve the trade agreement that would remove most tariffs on American exports and cement Colombia's preferential trade status with the United States.Angola elects first...