NSA spying: A handy review

From Vox:

Over the last year, through the revelations of Ed Snowden and independent reporting by others, we’ve learned more and more about the National Security Agency’s spying programs. Indeed, there have now been so many revelations that it can be hard to keep them straight. So here’s a handy guide to the most significant ways the NSA spies on people in the United States and around the world.

Read more.