Security forces fire on Yemeni protesters
Sectarian violence erupts in Egypt after church attacks
Anti-US protests in Pakistan over Osama killing
Mississippi River starts to wrap its arms around Memphis
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New Google images reveal extent of US tornado devastation
Alabama still reeling from disastrous tornado outbreak
Two dead as tornado tears through Auckland
Bin Laden death is top news across world's newspapers
US erupts as Obama confirms death of Osama bin Laden
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