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Guest: Open Lines with Dr. David Livingston. Topics: Carnival Cruise lines & informed consent, space radiation, nanosat launchers, & much more. Please direct all comments and questions regarding Space Show programs/guest(s) to the Space Show blog, http://thespaceshow.wordpress.com. Comments and questions should be relevant to the specific Space Show program. Written Transcripts of Space Show programs are a violation of our copyright and are not permitted without prior written consent, even if for your own use. We do not permit the commercial use of Space Show programs or any part thereof, nor do we permit editing, YouTube clips, or clips placed on other private channels & websites. Space Show programs can be quoted, but the quote must be cited or referenced using the proper citation format. Contact The Space Show for further information. We started our one hour fifty-one minute Open Lines discussion by my throwing out some suggested topics which included recent USA Today polls on human spaceflight to Mars and informed consent using the recent Carnival Cruise Line cruise from hell as a possible indicator of what may happen in the space tourism industry. Dave, our first caller, talked about the new efforts to create NTRs and have nuclear propulsion using tungsten as the fuel base. Dave had lots to say about the tungsten as well as traditional fuels. I next read a listener email about an NCIS Los Angeles 2011 episode about satellite sale to a foreign party and ITAR,. Next, we talked about another listener email calling our attention the SpaceWorks Nanosatellite Market Report, and then up next was the CNN interview with Bill Nye and the CNN anchor asking Bill if global warming was causing the NEOs and events like the Russian meteorite. Thanks to Tim for sending in the URL for the interview which you can see and hear at www.youtube.com/watch?v=ObU7awpJctQ. In our second segment, Pooley called in to support my informed consent and Carnival Cruise Line comments plus he again told us why he did not think the space tourism industry would be successful. Charles also talked about the Russian meteorite and the need for a dedicated cubesat or nanosat launcher over and above flying small sats as secondary payloads. In addition, we talked about the Google Lunar XPrize and the absence of launch contracts for the ride to the Moon. Tim called to talk about the nanosat launch industry, we talked about the upcoming Virgin Galactic1 small satellite launchers and deep space radiation and HSF. The dedicated small sat launcher reminded me of an Oct. 13, 2008 Jurist Space Review article proposing a university consortium for such a launch system and the condemnation he got for his proposal. Dr. Jurist called in to talk about his proposal and the response. You can read his 2008 Space Review article here: www.thespacereview.com/article/1228/1. I also asked Dr. Jurist about Tim's radiation comments and he explained this particular radiation issue to us. He also said there was a real lack of valid data points so much of what Tim, John and I were talking about was simply an unknown or extrapolated from data pools that may be quite different from those at the lower end of exposure. In discussing this subject, Dr. Jurist talked about American radiation standards, astronauts as radiation workers, and the European standards. At the end of the program, Tim called to talk about the Carnival Cruise Line incident and informed consent. Tim suggested tort reform with caps but also put forth a novel behavioral theory and I told him I would absolutely go on the five day cruise from hell to earn a million dollars! Please post your comments/questions on The Space Show blog. You can email any of the participants in this program through me at email@example.com.