# Videos
360 in 180: A Multilayered Approach to Addressing PNT Vulnerabilities Part I
We interview John Fischer, our VP of Advanced R&D on PNTPosition, Navigation, and Timing: PNT and map data combine to create the GPS service. Vulnerabilities. In Part 1, we ask John “What is NAVWARNavigational Warfare See also?” and “How Does PNT fit in with our Ground Forces?”.