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Associated Press
This graphic released by the National Geographic Society on Thursday, Jan. 10, 2013, shows the route Paul Salopek will take on his planned 21,000-mile (34,000-kilometer) walk. Two-time Pulitzer Prize-winning reporter Paul Salopek has taken the first steps of an unimaginably long walk - a 21,000-mile (34,000-kilometer) journey from Ethiopia to Argentina expected to last seven years. (AP Photo/National Geographic) NO sales, One Time Use only, No archiving

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