Yes, it is a challenge. I use a lot of analogies and examples—sometimes it's difficult with a back injury as well. After somebody has recovered from a back injury and after physiotherapy, it's difficult to say can they stand the rigours? You can test them by having them march 13 kilometres, that kind of thing. It's really difficult predicting the future of what would happen if we took this person again and dropped them out of an airplane—for a back injury—or the rigours of places like Rwanda, Somalia, the former Yugoslavia, and all the current operations.
To the best of our abilities we have ways of trying to predict it: realistic training, how they did in their training, their work of training. We try to do it. But as General Millar says, it's to protect the mission and the members themselves. Ethically, there isn't a lot of evidence that shows how people are going to do in the future. So if somebody is completely interested in carrying on and they've had a complete resolution of their symptoms for several months, they're no longer in regular therapy, they've been able to do their work-up training and their training without any concerns at all, we will certainly give them the opportunity to continue with their careers in organizations like the combat arms.
It is a possibility. It is a little bit more difficult in mental health, but it's difficult in physical health as well.