I am less concerned about the perils of government surveillance than I am with the cruelty we as netizens inflict upon each other. The recent case of Suey Park is a good example. Criticism and dissent are to be expected, but doxxing and death threats are unnecessarily extreme and juvenile.
Somewhat related is Jon Ronson’s Ted talk on out-of-control Twitter shaming. No one should ever have to utter the words “tweet” and “ruined life” in the same breath.