Here’s everything we’ve learned about how the NSA’s secret programs work

In the last few days, the press has focused on NSA leaker Edward Snowden and his efforts to evade capture by the U.S. government. But the more important story is what we've learned about National Security Agency surveillance programs thanks to his disclosures.

Any one of Snowden's revelations would have been a big story in its own right. But the news has been coming so rapidly that it's difficult to keep track of it all. So here's a handy guide to the recent revelations about what the NSA has been doing.