I also completely buy the competition angle -- especially considering I'm not going to pretend that Google is the "good guy" here, fighting perilously for our freedom against the evil government.
And third, I also see the point that, ya know, at the end of the day, these guys are probably building some useful systems.
I suppose my curiosity is mostly granular; I'd love to read some interviews with people who are directly working on this stuff to get their side. It seems like they have some REALLY good engineers working there, and I'm curious how.