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Associated Press
Members of the Diplomatic Security Service, (a division of The State Department), man their work stations inside the NATO Multi-Agency-Communications Center, Thursday, May 17, 2012, in Suburban Chicago. The MACC is the central point of communications for the agencies involved in the operational security efforts for the NATO Summit, During the summit 43 different local, state, and national agencies will man the center 24 hours a day.(AP Photo/M. Spencer Green)

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