It's important to me to not try to read anybody's mind because I can't do that, I'm a scientist. So in terms of what happened and as to what the thought process was as to why these changes were made, all I can do is comment on what the evidence has said about the reasons that were given to us as members of Canada. We have not found evidence that supports the propositions that were put forward as to why it needed to be changed.
On October 31st, 2016. See this statement in context.