a memorandum of understanding calling for the integration of Marine Corps CID into NCIS. (USMC CID continues to exist to investigate misdemeanors and felonies and other criminal offenses not under NCIS investigative jurisdiction.) In 2000, Congress granted NCIS civilian special agents authority to execute warrants and make arrests. Virtually all NCIS investigators, criminal, counterintelligence, and force protection personnel are now sworn civilian personnel with powers of arrest and warrant service. The exceptions are a small number of reserve military elements engaged in counter-intelligence support. A growing appreciation of the changing threat facing the Department of the Navy in the 21st century, culminating with the terrorist bombing of the in Yemen and the attacks on September 11, 2001, led NCIS to transform the Anti-terrorist Alert Center into the Multiple Threat Alert Center (MTAC) in 2002. NCIS agents were the first U.S. law enforcement personnel on the scene at the USS Cole bombing, the Limburg bombing and the terrorist attack in Mombasa, Kenya. NCIS has conducted fraud investigations resulting in over half a billion dollars in recoveries and restitution to the U.S. government and the U.S. Navy since 1997. NCIS investigates any death occurring on a Navy vessel or Navy or Marine Corps aircraft or installation (except when the cause of death is medically attributable to disease or natural causes). NCIS oversees the Master-at-Arms programs for the Navy, overseeing 8800 Masters-at-Arms and the Military Working Dog program. NCIS's three strategic priorities are to prevent terrorism, protect secrets, and reduce crime. Current missions for NCIS include criminal investigations, force protection, cross-border drug enforcement, counter-terrorism, major procurement fraud, computer crime and counter-intelligence. NCIS Special Agent Peter Garza conducted the first court-ordered Internet wiretap in the United States. Jonathan Jay Pollard was an NIS analyst who was convicted of spying for Israel after being caught by NIS and FBI. He received a life sentence in 1987. On February 14, 2010, Mark D. Clookie became the fourth civilian director of NCIS, having been appointed to the position by Secretary of the Navy Ray Mabus. In June 2010, NCIS undertook a major reorganization which created a single deputy director position, having previously had two (deputy director of operations and deputy director of management and administration), combination of the Combating Terrorism Directorate and the Counterintelligence Directorate into a single directorate (the National Security Directorate), and the creation of the Global Operations Directorate. The Global Operations Directorate was created