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Valeant is not 'a sewer': Bill Ackman

12:00 PM ET Mon, 2 May 2016

Bill Ackman, Pershing Square Capital CEO and portfolio manager, discusses the changes happening at Valeant Pharmaceuticals, and his decision to invest in the company's business model, after Berkshire Hathaway Vice Chairman Charlie Munger commented the company has become a "sewer."