On a side note, mass surveillance is doing a bang up job preventing this sort of thing from happening isn't it? Both the Boston bombers and this guy were known to the FBI but they still failed to stop an attack. The whole defense for mass surveillance was for it to stop things like this. The only "terror plots" that FBI is stopping are the ones they create and fund themselves. Snowden was right in that recent Vice interview, they're collecting so much it renders them ineffective.
Again, some of you need to upgrade your posts per page!
Unfortunately more people will be for more surveillance rather than accepting the fact that it doesn't work.