Hm, maybe Apple can do that, but for Google not looking at the data is not an option, it's the core business. For facebook too. However maybe, just maybe, they can come up with a way to share with governments only a small fraction, protecting their customers/users. I don't see how, but their engineers are smart, they could figure out something that works.

It's not just NSA or the US here. These corporations are multinational, operating on many different countries. Once the NSA has officially stepped foot in Google's data so will do the EU, Japan, China, etc.