You've seen the news stories, and maybe the documentary. The film Snowden will still scare and inspire you. Oliver Stone has made a film that will draw you in, engage you, and even feel anxious about Snowden's safety. Joseph Gordon-Levitt is amazingly like the man you've seen on TV or Youtube.
Imdb says about Snowden: Its performance during its opening weekend was the lowest opening of Oliver Stone's career for a film playing in over 2,000 theaters. So go to a theater near you, and see it!
Then come home and join the Electronic Freedom Foundation (EFF). And thank goodness you still have the freedom to do these things.
I'm so happy that the time I've spent working with KDE and Kubuntu support freedom and privacy too. These issues grow more important as the attacks on both grow more frequent and bold.