New York - Wal-Mart does not have a grand plan to take over the world, Chief Executive Officer H. Lee Scott told his retail competitors Sunday at the start of the National Retail Federation's 94th annual convention. "We just want to keep growing," Scott said in a talk that acknowledged his company's power, but tempered the message with big doses of self-effacing humor. "We don't think we're going to own the world. If you don't believe it, just go to a Best Buy store in the United States on the Friday after Thanksgiving." It was the first visit by a...