I left the talk thinking about how work like theirs, opposing an extremely powerful entity with deep connections in the government, will be affected by the rise of surveillance culture in our world. The choice of tools becomes extremely limited when your adversary has unlimited access to the information permanently stored in a vast array of communication channels. Remember that in the US, the airlines voluntarily (and without a court order) provided the government a massive amount of private information on their customers, including their travel habits and itineraries. Facebook and Google maintain enormous, detailed databases on everything you do online. Credit card companies and consumer databases maintain enormous, detailed databases on everything you buy and everything you do in public. And if you carry a cell phone or walk on a public street, your location is being tracked and stored. All of this is accessible to the government, so should the government turn violent and repressive, most of the communication tools you can rely on disappear. And the rule of law is a fragile thing.
[This is an excerpt from my more complete/rambling thoughts about the talk found here.]