[NormsRevenge]

Residents try to hose down a house after a U.S. air strike in Baghdad's Sadr City March 28, 2008. The attack killed four people and wounded three others, police said. REUTERS/Kareem Raheem (IRAQ)

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Vehicles burn after a U.S. air strike in a parking lot in Baghdad's Sadr City March 28, 2008. The attack killed four people and wounded three others, police said. REUTERS/Kareem Raheem (IRAQ)

[NormsRevenge]

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Mahdi Army fighters take positions in Basra, Iraq, Friday, March 28, 2008. Shiite militants clashed with government forces for a fourth day in Iraq's oil-rich south and sporadic fighting broke out in Baghdad, despite a weekend curfew in the capital. (AP Photo/Nabil al-Jurani)