North Korea conducted an underground test of a nuclear device, despite warnings and condemnation from around the world, including Russia and China. Now, North Korea is being scolded by the world community once again. Threats and isolation didn't work earlier - I suspect they won't work now. It seems that as we attack easier targets elsewhere, we appease countries that provide a real threat.
I sometimes wonder how history will view this era. We're on a path that began in earnest with 911, and leads to an as yet unknown destination. We lurch from crisis to crisis and react with little long-term impact or long-term strategy. We can only hope that people won't have to look back on these times and ask, "Didn't they see where this was going?"