Taylor spent 1974–76 in the Acquisition and Analysis Division of AFOSI's Directorate of Counterintelligence.[10] In April 1976, he became chief of the Counterintelligence Acquisition and Analysis Branch in Ankara.[10] He spent 1977–83 at Bolling AFB, D.C., becoming commander of AFOSI Detachment 411 in September 1977; chief of Resource Career Management Division in AFOSI's Directorate of Personnel in April 1979; and then commander of the Headquarters Squadron Section in October 1980.[10] He then spent fall and winter 1983 at the Armed Forces Staff College.[10]
In January 1984, Taylor became deputy director for operations in the Directorate of Counterintelligence and Investigative Programs in the Office of the Under Secretary of Defense for Policy.[10] From July 1987 to July 1988, he studied at the Air War College. In July 1988, he became deputy commander of the 487th Combat Support Group at Comiso Air Station in Comiso.[10] He became commander of AFOSI District 45 at Osan Air Base in July 1990; and then commander of AFOSI Region 2 at Langley Air Force Base in July 1992.[10] He returned to Bolling AFB in August 1994 as director of mission guidance at Headquarters AFOSI.[10]
In August 1995, he became director of special investigations in the Office of the Air Force Inspector General.[10] He spent July 1996 through July 1998 as commander of AFOSI at Bolling AFB, D.C., where he was responsible for providing commanders of all Air Force activities independent professional investigative services in fraud, counterintelligence, and major criminal matters.[10] In August 1998, Headquarters AFOSI moved to Andrews AFB, MD, in August 1998.[10] Taylor has received numerous awards and decorations, including the Distinguished Service Medal, the Defense Superior Service Medal, and the Legion of Merit,[10] Taylor retired from active duty on July 1, 2001.[11]
In 2001, President George W. Bush nominated Taylor to be Coordinator for Counterterrorism, and Taylor subsequently held this office from July 13, 2001 until November 15, 2002.[9] In this role, he was responsible for implementing U.S. counterterrorism policy overseas and coordinating the U.S. government response to international terrorist activities. In the aftermath of the September 11, 2001, attacks, he was a key advisor in assisting the President Bush and Secretary of StateColin Powell in forming the international coalition against terrorism and developing aggressive international policy implementation to defeat terrorism.
President Bush then nominated Taylor to be Assistant Secretary of State for Diplomatic Security and Director of the Office of Foreign Missions, with a rank of Ambassador. Taylor held this office from November 18, 2002 until February 19, 2005. As Assistant Secretary, Taylor oversaw all Department of State security programs that protect all U.S. government employees and buildings overseas from terrorist, criminal or technical attack, and ensure the integrity of classified national security information produced and stored in these facilities. Leading more than 32,500 US, foreign and contractor personnel, he provided security for all U.S. government employees assigned to over 250 U.S. embassies and consulates worldwide. The Ambassador also directed the law enforcement function of the Bureau, wherein Diplomatic Security Service special agents protect the Secretary of State and foreign dignitaries who visit the United States and conduct criminal investigations of violation of U.S. Visa and Immigration statutes. As Director of the Office of Foreign Missions, Taylor regulated the activities of foreign missions in the United States to protect the foreign policy and national security interests of the United States and safeguard the American public from abuses of privileges and immunities by diplomatic and consular officials.[7][12]
Taylor joined the General Electric Company as Vice President and Chief Security Officer on March 7, 2005. He is responsible for overseeing GE’s global security operations and crisis management processes.[13]
On August 17, 2017, Taylor was named an executive fellow of the Global Policy Initiative in the new Keough School of Global Affairs at the University of Notre Dame.[15][16]
Taylor is married to Constance O. Taylor and together the couple have three children.[citation needed]