The investment provisions of the NAFTA and subsequent treaties have been used to attack environmental protections in Canada. The subject matter of trade treaties, as I've said, is changing quite dramatically. They involve regulatory matters that need to be fully debated, and instead we see in the TPP that they are moving to greater secrecy and actually stifling the public debate. I think that's very unfortunate for a proper critical discussion of these very sweeping treaties.
On May 27th, 2013. See this statement in context.