Surveillance and Security Lessons From the Petraeus Scandal

Interesting, thanks. I think this incident is going to make a lot of people reconsider their email habits.

They point out the difference between obtaining the text of emails, versus just the to/from metadata (the latter is much easier to get). It seems like a lot of people could get pulled in, once the database starts growing. You can imagine it would be easiest for providers to just yield up the most extensive list of metadata, which would provide more links to follow, etc.