This image made Thursday, June 29, 2006 from an undated video distributed by U.S. government contractor IntelCenter, shows an undated still photo, left, of Osama bin Laden alongside a video of the late chief of al-Qaida in Iraq, Abu Musab al-Zarqawi. The 19-minute audio message by bin Laden pays tribute to al-Zarqawi, and was posted on an Islamic militant web site. (AP Photo/IntelCenter)
This image made from an undated video distributed by U.S. government contractor IntelCenter shows Al-Qaida's No. 2 leader Ayman al-Zawahri, wearing a white robe and black turban, speaking to the camera with a picture of a smiling al-Zarqawi over his left shoulder. Al-Zawahri paid tribute to the slain Abu Musab al-Zarqawi in a video released Friday, June 23, 2006, extolling him as 'the prince of martyrs' despite the rocky relationship that the terrorist leader in Iraq had with the al-Qaida command. (AP Photo/IntelCenter)