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Photo by: Hassan Ammar

Women demonstrators shout anti-goverment slogans after riot police drove demonstrators from a main square in Manama, Bahrain, early Thursday morning, Feb. 17, 2011. Armed patrols prowled neighborhoods and tanks appeared in the streets for the first time Thursday after riot police with tear gas and clubs drove protesters from a main square where they had demanded sweeping political change in this tiny kingdom. (AP Photo/Hassan Ammar)

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