Richard Stallman speaks about software patents.
Date and location: University of Calgary, Canada 2005
Video director: Gordon McDowell
Sponsor: Calgary UNIX Users Group
Credits: http://opensourcevideo.blogspot.com/, http://20041102lastchance.blogspot.com/
Video and audio are licensed under the Creative Commons Attribution-ShareAlike 2.0 License:
Richard Stallman's talk on "Digital Freedom: the context for Bitcoin" at the London Bitcoin Conference 2012.