` ` Abu Du ' a '' was put on a global watch list earlier this week . He is regarded as the senior leader of Al Qaeda in Iraq , State Department says . Three days after bin Laden 's death , Abu Du ' a claimed responsibility for an attack that killed 24 policemen and wounded 72 others , according to the bulletin . Abu Du ' a has threatened ` ` violent retaliation '' for the death of Osama bin Laden , it says .
` ` Abu Du ' a '' was put on a global watch list earlier this week . He is regarded as the senior leader of Al Qaeda in Iraq , State Department says . Abu Du ' a has threatened ` ` violent retaliation '' for the death of Osama bin Laden , it says .