T-Mobile US, Inc. announced that Letitia A. Tish Long has been appointed to its Board of Directors, effective June 22, 2021. Long has also been appointed to the boards Nominating and Corporate Governance Committee and will serve as the companys National Security Director as part of national security commitments connected to its merger with Sprint. Long has nearly 40 years of experience in security and intelligence as well as organizational leadership, business functions and global operations. She served as the fifth director of the National Geospatial-Intelligence Agency (NGA) and was the first woman to lead a major U.S. intelligence agency. She previously served as the Deputy Director of Naval Intelligence, the first Deputy Undersecretary of Defense for Intelligence (Policy, Requirements and Resources), the first Chief Information Officer, and later, Deputy Director of the Defense Intelligence Agency.