Years from today, North Korean bankers will remember 2016 as their annus horribilis. In February, a month after the North’s fourth nuclear test, Congress passed, and the President signed, the North Korea Sanctions and Policy Enhancement Act. Section 201 of the new law all but compelled the Treasury Department to designate North Korea a Primary Money Laundering Concern under section 311 of the Patriot Act. Section 311 allows for a menu of special measures to protect the financial system against...

After a long delay, the Treasury Department has issued its final rule prohibiting financial institutions operating in U.S. jurisdiction from providing direct or indirect correspondent account services to North Korean financial institutions. In English, that means North Korean banks are now denied a critical link for accessing the global financial system. North Korea is now one of only three countries to be declared a Primary Money Laundering Concern by the Treasury Department, and is the only country subject to Special Measure...