Keith’s note: NASA HQ is further adjusting its NASA Advisory Committee by removing some current of its members. This note from NASA Administrator is being sent out to some NAC members.
Biologist, Explorers Club Fellow, ex-NASA Space Biologist and Payload integrator, Editor of NASAWatch.com and Astrobiology.com, Lapsed climber, Explorer, Synaesthete, Former Challenger Center board member... More by Keith Cowing

Does anyone know which of the members were removed and why?