Key Zarqawi aide caught in Iraq: Pentagon

Air Force Gen. Richard Myers, chairman of the Joint Chiefs of Staff, told the PBS program "The NewsHour with Jim Lehrer" that Monday's capture of Abu Abd Al-Aziz, whom he called Zarqawi's "main leader in Baghdad," was "going to hurt that operation of Zarqawi's pretty significantly."

Myers said Al-Aziz was picked up "on the battlefield," but provided no other details.

A defense official, speaking on condition of anonymity, added, "When you look at the picture of the Zarqawi network of the different elements that are known to exist, he's the second-in-command of the Baghdad element and has the reputation of being the 'emir of Baghdad' for Zarqawi."