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A security guard salutes toward an Olympic flag and flags of the United Nations and countries participating in the 2014 Winter Olympics, Saturday, Feb. 1, 2014, in the Athletes Village in Sochi, Russia.
A security guard salutes toward an Olympic flag and flags of the United Nations and countries participating in the 2014 Winter Olympics, Saturday, Feb. 1, 2014, in the Athletes Village in Sochi, Russia.

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    Russia's response to possible attack

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Russia's response to possible attack

Russia's response to a possible attack on Sochi would be fierce. CNN's Nick Paton Walsh reports.

Russia's response to possible attack

Russia's response to a possible attack on Sochi would be fierce. CNN's Nick Paton Walsh reports.