The presentation is available in two parts below, and through the Archive.org page.
Slides are available in PDF format
The Edward Snowden presentation (The last lighthouse: free software in dark times) that I showed a part of is available at the LibrePlanet 2016 mediagoblin page and on YouTube. I started the video at around the 4 minute mark.
This work is licensed under a Creative Commons Attribution 3.0 Unported License.
Images used in in the slides were sourced from Wikipedia and Google image search, I have relied on my Canadian Copyright Act, Section 29.21 rights (Non-commercial User-generated Content), the so-called “mash-up exception” to use them in my presentation.
My talk at BSides Winnipeg 2015.