Here is a great discussion on Star Talk Radio hosted by Neil Tyson on Geopolitical history of going into space. http://www.startalkradio.net/show/startalk-radio-space-chron.../ http://www.startalkradio.net/show/space-chronicles-part-2/ Should give insight on where NASA should go into the future.
I enjoyed the interview portions, but no so much the analysis and the "comic relief" of the podcast. I had never heard of operation Paper Clip. Interesting stuff.