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WASHINGTON, DC - FEBRUARY 03:  Republican Presidential candidate Dr. Ben Carson speaks to the media at the National Press Club February 3, 2016 in Washington, DC.  (Photo by Mark Wilson/Getty Images)
WASHINGTON, DC - FEBRUARY 03:  Republican Presidential candidate Dr. Ben Carson speaks to the media at the National Press Club February 3, 2016 in Washington, DC.  (Photo by Mark Wilson/Getty Images)

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    Ben Carson suggests medical ways to extract information

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Ben Carson suggests medical ways to extract information

Dr. Ben Carson discusses medical ways to extract information, such as truth serum, when asked about Donald Trump's claim that "torture works." CNN's Poppy Harlow reports.

Ben Carson suggests medical ways to extract information

Dr. Ben Carson discusses medical ways to extract information, such as truth serum, when asked about Donald Trump's claim that "torture works." CNN's Poppy Harlow reports.