Learn about the Department of Energy National Labs' innovative use of XR technology through this conference talk from DEF CON 32. Explore how Pacific Northwest National Lab (PNNL) leverages immersive XR platforms to enhance national security, infrastructure, and communication operations. Discover practical applications including virtual twins for remote access to unique lab equipment, simulated hazardous environment training, and public engagement initiatives for security threat awareness. Gain insights into real-world case studies demonstrating PNNL's implementation of XR solutions and their vision for future developments in this transformative technology field.