William "Bill" Ackman, founder and chief executive officer of Pershing Square Capital Management LP, speaks during a television interview at the Robin Hood Investors Conference in New York, U.S., on Friday, Nov. 22, 2013. The activist investor said he will take his Herbalife Ltd. bet to the end of the earth even as losing as much as $500 million on the investment. Photographer: Peter Foley/Bloomberg via Getty Images
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