Oscar-winning actor Sean Penn spent three weeks in Haiti following the January earthquake, living in a tent and witnessing first-hand the devastation. He is back in Haiti, and spoke with Anderson about his campaign to stop a potential public health disaster.
Learn more about the J/P Haitian Relief Organization
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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