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Photo by: Khalil Hamra

**FILE** Graffiti on a wall on a main commercial street in Gaza City, Gaza Strip, on Sept. 21, 2010, reads in Arabic: "The Interior Ministry and National Security, and the Campaign to battle collaboration with the enemy, thank the Union of Palestinian artists." A Hamas campaign to catch Palestinians spying for Israel has trawled in prominent Gaza residents, prompting some of the sharpest public criticism of the territory's Islamic militant rulers since they seized power more than three years ago. (Associated Press)

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