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Dr. Fauci on his 52 years in clinical biomedical research: 'It suits me and I love it'

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Dr. Anthony Fauci tells Lawrence O'Donnell that he has served at the National Institutes of Health since 1968 and as Director of the National Institute of Allergy and Infectious Diseases since 1984 because “it's electrifying when you look at all the good that you can do.”