The latest presentation to the Future In-Space Operations (FISO) study group is now posted in the FISO Working Group Presentations Archive. Both slides (pptx) and audio (mp3) are available for the talk, Direct Fusion Drive for Fast Mars Missions with the Orion Spacecraft, Joseph Mueller , Princeton Satellite Systems, July 24, 2013.
The Direct Fusion Drive mentioned here seems related to that of John Slough at the Univ. of Washington (see Update on Univ. Washington fusion propulsion project).



