While a certain amount of cynicism is healthy and it should be acknowledged that Google can always back track, I'm still happy that for now they've decided not to assist and facilitate one of the most Orwellian nation's to ever exist.
"I’m not sure I can say this more clearly: we’re not in cahoots with the NSA and there’s is no government program that Google participates in that allows the kind of access that the media originally reported. Note that I say “originally” because you’ll see that many of those original sources corrected their articles after it became clear that the PRISM slides were not accurate. Now, what does happen is that we get specific requests from the government for user data. We review each of those requests and push back when the request is overly broad or doesn’t follow the correct process. There is no free-for-all, no direct access, no indirect access, no back door, no drop box."
Or he wasn't lying, but didn't himself have fully accurate information. Just like a big organization, there may have been a lot of work (and slides generated) on a project that was ultimately killed/changed significantly.