Responding to O'Reilly's attack on "unprofessional" NBC, Olbermann awarded Fox News host another "Worst Person" citation

SUMMARY: After Bill O'Reilly blasted NBC for taking "cheap shots" at his own Fox News network, Keith Olbermann once again declared O'Reilly the "Worst Person in the World," pointing to numerous instances in which he said Fox News engaged in the same kind of tactics O'Reilly decried.

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