Two weeks ago, the Guardian published two Snowden documents; this and this . They outline how the NSA's data-collection procedures allow it to collect lots of data on Americans, and how the FISA court is failing to provide oversight. As a result.
The documents are complicated, but I strongly recommend that people read both the Guardian analysis and the EFF analysis -- and possibly the USA Today story.
Frustratingly, the NSA over-reach is not the major news story being reported, and therefore most people don't know what it is all about. At this point, the only aspect in the news is the personal story about Snowden himself. The policy issues are apparently too complicated for the public to understand, or perhaps even for the press to understand, or perhaps it is yet another example of a press coverup to protect the government.
What can be done about it? If something isn't done soon, we all lose.