Seriously, i think it's important for us all to be aware of what's going on with this issue. Basically, Canada is working on merging many of its policies with the U.S. and Mexico. This would increase "security" and trade, but would mean that Canada would no longer have complete say in its policies, such as who to allow in as refugees or immigrants, what environmental standards to have, etc.
It is basically a merger of Canadian and U.S. policies. Which I think is somewhat dangerous to our sense of identity, as well as dangerous to Canada's commitment to justice in many different areas.
Check out this link for more information.