There were precious few to be found in your report of your interview with John Brandenburg this week. First, his statement that NASA is “part of the Department of Defense for the intelligence community” is totally incorrect. You yourself ought to know that and should not have allowed that statement to go unchallenged. NASA’s charter and purpose is civilian space exploration and aeronautical research. JPL is a science laboratory managed by CalTech. The fact that both institutions carry out classified projects under contract to the DoD in no way alters that fact.
Brandenburg revealed further ignorance in stating that “Almost all of the astronauts are either active military or ex-military.” This is not true. Currently 18 of 44 active NASA astronauts—a minority—are ex-military, and none at all are active military. The overwhelming majority are Ph.D scientists.
It’s frankly astounding to hear Brandenburg accuse NASA of fudging data on xenon isotopes in the Martian atmosphere. Where did Brandenburg get the data on which he bases his nuclear theory, if not from NASA? I believe his initial analysis was based on Viking data, and since April 2015 extremely precise data on xenon and argon isotopes has been available from the SAM instrument on Curiosity. I’m quite sure Brandenburg has studied that data, and accordingly ought to be acknowledging JPL’s expertise instead of making false and defamatory statements about the laboratory.
It was also astounding to hear you and Brandenburg discuss xenon isotope ratios on Mars without either of you making any reference to the alternative theory that the “excess” 129xenon arose from decay of 129iodine. Iodine is a solid in Martian ambient conditions and therefore would not have been lost at the time when Mars lost most of its atmosphere some time in the first 100 million years of the planet’s existence. There has been time since then for 275 half-lives of the 129I > 129Xe decay process, and that fact provides a firm enough basis for the theory that it deserves mention in any discussion such as you had with Brandenburg.
Ref: Yes, folks, it's the xenon isotope show!