Sen. John McCain has a CQ Guest Blog about the recent North Korean nuke test. In "Why North Korea is the Wrong Focus," I warned about next steps that won't be enough to make a difference - and unfortunately, McCain's suggestions are a good example of that dynamic at work.

The simple truth is that China will not implement or carry out the sanctions he envisions, for the reasons I discussed, unless faced with a downside large enough to both cancel their expected gains from enabling North Korea, and offer the reality of a fear greater than their fear of a North Korean refugee tsunami. McCain offers nothing of the kind. On the plus side, his post accurately diagnoses the failures of the previous policy, and correctly calls where this is probably headed.