Diplomacy, Dictators and Double-Speak at the United Nations

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UN headquarters is providing "the greatest geopolitical show on Earth," according to one reporter, as the world body celebrates its 70th anniversary with speeches by heads of state from all over the world. When the UN was founded in 1945, the focus was on the US and the Soviet Union. Today, it's on the US and Russia. While much has changed, much remains the same. 

Also, the discovery of flowing water on Mars sparks questions of habitability. On today's Talking Point, Donald Trump announces what he calls a "zero rate" tax plan. 

Photo: UN Photo/Amanda Voisard