Perhaps Edward Snowden's stay in Russia will be a short sojourn on his way to a life somewhere in sunny South America. Perhaps he'll really dig Russian literature, find a new girlfriend and decide to plant a radish garden.
If he does, he'll join a list of other spies and defectors who have fled the United States for political or ideological reasons.
Most happened during the Cold War, when the U.S. and the former Soviet Union duked it out for global supremacy. But some would argue that today's Russia, under Vladimir Putin, hasn't changed much when it comes to suppressing political speech, imprisoning critics and harassing minorities or anyone he doesn't like.
Here are some U.S. defectors; many of whom didn't end up so well.