That's my main concern there.
In today's world, it's going to be tough, especially with a lot of data, but I think we need to be very nuanced in how we strike that balance while respecting the law.
The key is going to be those thresholds. If we start to get the inputs right, then likely the information in the databases will be necessary to be held. If the net is so wide that we're pulling in anti-Saudi protestors, or whatever they are, or just anyone who is flying, and then later they show up on the radar possibly, and then all of that is pulled in to create a profile of them with metadata and travel patterns, that to me is worrying, because fundamentally in a democracy we don't do that. When Commissioner Paulson was talking about keeping email content on servers, one of the U of T researchers said, “Why don't we just have a camera in all of our homes because it could be useful someday?” I think that really hit the nail on the head.