I found a text of the Q and A to which I refer here. (It is at the very bottom.)
What do we do when right to privacy and national security collide?
McCain: We must preserve privacy because it's a fundamental right (including a secret ballot for union organizers, even though that's a different topic). Technology has gotten much more sophisticated, so we do have to increase our own capability to monitor our enemies. We need Congress and the judiciary both to work on this. But we need to sit down and settle this across party lines. There's a constant tension as technology changes and we have to keep up with it.
This is confusing for me as I do think there is a right to privacy as well as a right ot life. However, I think the right to life "trumps" the right to privacy. Not being a lawyer, I am not sure how this is resolved.