For those which reported missing references for the message I'm replying to (my own one), here is the references. Now they should appear normally for those reading using the forums.
 https://downloads.softwarefreedom.org/2017/conference/0-keynote.webm . According to https://softwarefreedom.org/events/2017/conference/video/ , it's under CC BY-SA 3.0 US.  https://media.libreplanet.org/u/libreplanet/m/the-free-software-movement-in-the-age-of-trump/ (under CC BY-SA 4.0).