https://groups.google.com/forum/#!topic/qubes-users/I7_Hs4eZ0Yg

The webpage no longer is there, but the video is online: https://www.youtube.com/watch?v=CK3BE2VMT-s

For the transcript: https://web.archive.org/web/20131001131726/http://www.nsa.gov/public_info/media_center/ia/video/orlando2010/Transcript.html