Volume 55 contains a 15'24" video from al-Qaeda's as-Sahab Media featuring an audio statement from Ayman al-Zawahiri with English subtitles that was released on 30 Dec. 2006. It is entitled, "Congratulations on the Eid to the Ummah of Tawhid". The production date is Dec. 2006. Al-Zawahiri gives congratulatory messages to Muslim brothers on the occasion of Eid al-Adha and congratulations on the "defeat" of the Crusaders in Iraq and Afghanistan. The "Know Thy Enemy" series is specifically designed to give professionals across the academic to private security to government spectrum access to the highest possible quality of unedited versions of terrorist videos in a format useable by analysts to help achieve better clarity on the activities of such groups and consequently improve efforts to prevent attacks. IntelCenter is the primary supplier of terrorist video material to law enforcement, military and intelligence communities in the US and other countries around the world. IntelCenter's foremost responsibility is in providing counterterrorism intelligence support to government agencies. However, when IntelCenter has materials that are not restricted and can be released to a broader community it does so in order to help support researchers, academics, journalists, security officials and others who have a legitimate need for professional level material to understand the threat but do not have access to government resources. As a result IntelCenter is a significant supplier of terrorist video material to CNN, NBC, CBS, ABC, AP, Reuters, AFP, Fox News, MSNBC, France24, the Washington Post, New York Times and countless other media outlets, documentary makers, universities and others around the world.