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Sean Penn: In Ukraine 'the need for freedom is so familiar'
On Thursday, at least 51 people were killed in a Russian strike in Eastern Ukraine, reflecting one of the worst attacks on civilians since Russian President Vladimir Putin launched his full-scale invasion of the country last year. Oscar-winning actor Sean Penn joins MSNBC’s Lawrence O’Donnell to discuss what he saw during several trips to Ukraine for his latest documentary, “Superpower.”