Nation

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Terence Smith speaks with Jeremy Hudson of the Clarion-Ledger in Jackson, Miss., the reporter who broke the story about a military unit in Iraq refusing to go on a dangerous mission.

U.S. forces stepped up operations Tuesday across a wide swath of the Sunni insurgent strongholds northwest of Baghdad, pounding targets in two cities from the air and supporting Iraqi troops in raids on mosques suspected of harboring insurgents.