Player Embed Code: Download Embed Share Special Guest Speaker--MAJ Kathleen Rubins, NASA Astronaut Defense Threat Reduction Agency's Chemical and Biological Technologies Department Feb. 13, 2023 | 46:18 MAJ Kathleen Rubins, NASA Astronaut, speaks at the 2022 CBD S&T Conference that brought together nearly 1,500 scientists, program managers, and leaders from across the globe to find disruptive solutions that better protect the Joint Force, nation, and our allies from chemical and biological threats.