US Secretary of Defense Ash Carter
- Episode aired Dec 26, 2016
- TV-PG
- 44m
Neil deGrasse Tyson talks about the future of science and technology in the armed forces featuring his interview with Defense Secretary, Ash Carter.Neil deGrasse Tyson talks about the future of science and technology in the armed forces featuring his interview with Defense Secretary, Ash Carter.Neil deGrasse Tyson talks about the future of science and technology in the armed forces featuring his interview with Defense Secretary, Ash Carter.