The Ottawa U program (Public and International Affairs) has three specializations (global policy, international affairs, development) compared to the clusters at Carleton.
Here's the courses they offer:
http://www.grad.uottawa.ca/Default.aspx?tabid=1727&monControl=Admission&ProgId=678
Here's a promo video that offers a bit:
I have a lot of volunteer work that involves research, and reasonable grades. Other than that I am not quite sure.
I believe all three of my references ranked me high on the question of whether or not I would be a good fit as a TA.