Meet the new world's richest man. With a fortune of holdings at $53.5 billion, Mexican telecom tycoon Carlos Slim Helu supplanted Microsoft founder Bill Gates in a new Forbes list that revealed a serious shift of wealth internationally. Below are the set-up line from the open and the Bill Weir segment. Plus, ONLY IN AMERICA. Well, not this year — the USA is losing its grip on the world's biggest fortunes — and there's a new top dog south of the border. It's an embarrassment of riches in tonight's Sign of the Times.