Just How Healthy Will Google Health Be?

Ah, yes, Google Health:

Due to the sensitive and personal nature of the data that will be stored in Google Health, we need to conduct our health service with the same privacy, security, and integrity users have come to expect in all our services. Google Health will protect the privacy of your health information by giving you complete control over your data. We won't sell or share your data without your explicit permission. Our privacy policy and practices have been developed in thoughtful collaboration with experts from the Google Health Advisory Council.

All highly laudable.

So what happens when somebody turns up on Google's doorstep with a warrant, demanding information about an individual? Presumably, it will fight. And what happens when somebody *doesn't* turn up on Google's doorstep with a warrant, but just wants a quiet chat about the records of someone who is - because the US government says they are, but can't reveal the details because it's a state secret - a terrible wicked evil terrorist, and anyway has a funny-sounding name? Will it fight for them, too?