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Iraqis inspect the site of a car bomb explosion in Diwaniyah, south of Baghdad, on April 29, 2013. Three car bombs exploded south of Baghdad, killing several people and wounding scores of others, police said, the latest attacks in a seven-day wave of violence that has left more than 230 people dead across Iraq. AFP PHOTO/STR (Photo credit should read STR/AFP/Getty Images)
Iraqis inspect the site of a car bomb explosion in Diwaniyah, south of Baghdad, on April 29, 2013. Three car bombs exploded south of Baghdad, killing several people and wounding scores of others, police said, the latest attacks in a seven-day wave of violence that has left more than 230 people dead across Iraq. AFP PHOTO/STR (Photo credit should read STR/AFP/Getty Images)

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    Sectarian violence flares in Iraq

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Sectarian violence flares in Iraq

Fawaz Gerges talks to CNN's Becky Anderson about the growing sectarian violence in Iraq.

Sectarian violence flares in Iraq

Fawaz Gerges talks to CNN's Becky Anderson about the growing sectarian violence in Iraq.