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Otto Warmbier, a student who has been imprisoned by North Korea, was set free
Otto Warmbier, a student who has been imprisoned by North Korea, was set free

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    Student released by North Korea is in a coma

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Student released by North Korea is in a coma

Questions arise about American college student Otto Warmbier's health and what happened to him while he was held for more than 17 months in detention in North Korea. CNN's Brian Todd reports.

Student released by North Korea is in a coma

Questions arise about American college student Otto Warmbier's health and what happened to him while he was held for more than 17 months in detention in North Korea. CNN's Brian Todd reports.