Here's the Glen Greenwald "What I've Learned" from the December issue of Esquire.
My favorite excerpt:
Ultimately the reason privacy is so vital is it’s the realm in which we can do all the things that are valuable as human beings. It’s the place that uniquely enables us to explore limits, to test boundaries, to engage in novel and creative ways of thinking and being. Only if we feel free of the kind of judgmental eyes of others are we able to try different things out, to experiment, to evolve, to free ourselves of mores that are imposed on us or conventional orthodoxies about how we’re supposed to behave and think. And that, ultimately, is what is most valuable about being human: to be able to create new ways of thinking and being.
Surveillance breeds conformity.
And a good place to start on the whole topic from the 12.09.13 USA Today: