While I agree that Greenwald mostly danced around the issue, I think there was some content to his exclamations. While I'm not terribly familiar with Jennifer Granick, I think she does a much better job explaining the FISA vs FAA debate [1]; her writing seems more objective to me. Presumably Greenwald leaves it to the reader to inform themselves? A strange idea, I must admit.

[1] http://cyberlaw.stanford.edu/blog/2012/11/fisa-amendments-ac...