Robert Einhorn, President Obama’s special adviser for non-proliferation and arms control, is visiting Seoul and Tokyo this week. He is accompanied by Daniel Glaser, who works with Treasury’s Undersecretary for Terrorism and Financial Intelligence, and who was a key architect of the Banco Delta Asia sanctions in 2005 and 2006. At the risk of making a comparison that Glaser might not necessarily welcome, his presence in Seoul has far more deterrent value than parking an aircraft carrier off the coast...

According to multiple newspaper reports published since late last week, the Obama Administration’s new asset-freezing campaign against North Korea began in earnest in June. The Treasury Department, having identified about 200 accounts worldwide suspected of storing the proceeds of banned weapons sales, currency counterfeiting, counterfeit cigarettes and Viagra, proliferation, drug trafficking, and other things that all sovereign nations to do pay for yachts for their despotic rulers. Treasury focused on 100 accounts where its evidence was strongest and quietly persuaded...