In this capacity, the 24-year bureau veteran is responsible for executing programs against terrorist activity, espionage and weapons of mass destruction.
He started his FBI career as a special agent in the New York field office in 1991 and was later assigned to the Philadelphia field office, where he helped establish and direct the organization’s field intelligence group.
In 2005, Giacalone became the bureau’s deputy on-scene commander in Iraq and coordinated with U.S. intelligence and military personnel in that role.
He also participated in the Attorney General Guidelines Task Force before he was selected to serve as chief of the domestic terrorism strategic operations section within the counterterrorism division at FBI headquarters in 2010.
He returned to New York in 2011 to serve as the counterterrorism division’s special agent in charge and then served as a deputy assistant director role in CTD until he was promoted to assistant director of the unit in January 2014.
He holds a bachelor’s degree in management and finance from Adelphi University and a master’s degree in national security and strategic studies from the Naval War College.