On Sunday, NSA leaker Edward Snowden landed in Moscow on a flight from Hong Kong. The United States had asked for Snowden’s extradition, but officials in Hong Kong said the request did not comply with their laws. Snowden will probably not be allowed to stay in Russia, and reports vary on where the fugitive will go next – Cuba, Venezuela, Ecuador, or some other questionable country. The flight from Hong Kong took Washington by surprise, and it is unclear when Snowden will make the next leg of his journey into permanent exile. But the Obama administration might take a lesson...