This should come as a shocker to the Liberal Party of Canada:

China helped North Korea develop nuclear weapons and in the past year increased its support to Pyongyang, rather than pressing the regime to halt nuclear arms and missile activities, according to a congressional report.
    

The final draft report of the U.S.-China Economic Security Review Commission also says that Chinese government-run companies are continuing to threaten U.S. national security by exporting arms to American enemies in Asia and the Middle East.

Read the rest.

Why all the talk about negotiating with North Korea, about failed diplomacy and the like. You can't negotiate with someone who is never willing to settle or compromise. Negotiaions with the North without a credible threat to the power of the dictator is simply volunteering for extortion. North Korea will not come to the table unless you pay them, will not stay at the table unless you pay them and will break any "deal" they enter regardless of whether you pay them. Why would they do otherwise? There is no downside for the dictator and the world will blame America.

Victor Davis Hanson takes a look at North Korea and China's role. It is well worth the read.