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Hardly a day passes at ABC News without a report from David Muir. From his popular "Made In America" segments to on-the-scene reporting from Cairo's Tahrir Square and the school shootings in Newtown, Connecticut, the 39-year-old journalist keeps getting more airtime. He's added 20/20 to his weekend evening news anchor duties and is considered the odds-on favorite by many in the TV news business to succeed Diane Sawyer at World News. Time to get to know him better.
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