I think there are two.
One issue is relations with our aboriginal peoples and first nations. That's a really significant and fundamental problem that's not going away. Aboriginal peoples and first nations often don't like to cast the question in terms of race relations. They see it more in terms of relations among peoples, but the non-resolution of that issue has a significant impact on race relations as well. I would say that's one of them.
The other has to do with what we call competing rights. How are we going to resolve different views on what is permissible in the public sphere with respect to religion? How are religions going to adapt to what is permissible in the public sphere? How are they going to adapt to each other?
Those are the two major issues we're facing right now. That doesn't diminish all the other issues we're facing, but you asked for the top two.