Should NATO go global or at least deepen its linkages with like-minded states on a global basis? Do calls for a new international security architecture threaten NATO's role as the preeminent alliance…

Watch experts discuss the role of NATO in the international system as part of the Council on Foreign Relations "NATO at 60" Symposium.

David F. Gordon, Mark L. Schneider, and Paul B. Stares discuss their respective organization's assessments of the risks and the most worrisome sources of instability and conflict in 2012.