Osama bin Laden, al-Qaeda's leader, has purportedly issued an internet message warning Iraqi Shia of retaliation if they continued to attack Sunnis.
"It is not possible that many of the people of the south (Shia) violate, alongside America and its allies, [the Sunni cities of] Ramadi, Falluja, Mosul ... that their areas would be safe from retaliation..
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