I was actually going to say that I think the problem—and I probably should have said it more explicitly—is at the other end. If you offer this blanket protection, then when you try to use the information and to test it in court to try to prosecute someone who is a terrorist and is guilty of that, you're going to run into problems. The courts will take a very dim view of being unable to check the sources and will allow the defence to challenge that information.
The courts have said before that a case-by-case basis works, and from the few witnesses we had, we didn't hear any evidence that the case-by-case protection was not working. This is really trying to embed that very same idea back into the bill.