They might. This is speculation. You asked for a yes or no answer, but I'm not going to provide one. I imagine that many terrorists would go ahead and do what they're going to do anyway, if they're irrational. But I think we should be sending a clear message, which we have failed to do until now, that people who have acquired Canadian citizenship and then use it to attack Canada and attack our values....
I think that message has to go out, regardless of whether we can be specific on whether there would be a deterrent.