Anatomy of a failed summit: All or nothing ends with nothing

In the most important sense, the Hanoi summit failed for a very simple reason: North Korea will not eliminate its nuclear arsenal over the next months or years. However, this does not mean that negotiations are doomed to fail or misguided -- just the opposite. It is more important than ever that negotiations succeed in limiting the threat from a nuclear-armed North Korea. Without a decisive shift in course, a third summit would only end up like the first two.