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Photo by: Liam Mc Burney

A masked youth prepares to throw a petrol bomb at police in the Ardoyne Area of North Belfast, Northern Ireland, Tuesday, July 13, 2010. Northern Ireland leaders condemned Irish nationalist rioters Tuesday who wounded 82 police officers during two nights of street clashes sparked by the province's annual parades by the British Protestant majority. (AP Photo/Liam Mc Burney)

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