Herbalife a Pyramid Scheme, Ackman Says

Dec. 20 (Bloomberg) -- William Ackman, founder of Pershing Square Capital Management LP, talks about weight-loss supplement company Herbalife Ltd., his short position on the stock and his claim that the company is a pyramid scheme. Ackman speaks with Erik Schatzker and Stephanie Ruhle on Bloomberg Television's "Money Moves." (Source: Bloomberg)