Via the NYTImes:

Planes carrying 10 convicted Russian sleeper agents and 4 men accused by Moscow of spying for the West swooped into the Austrian capital, once a hub of clandestine East-West maneuvering, and the men and women were transferred, the Justice Department said. The planes soon took off again in a coda fitting of an espionage novel.

Further down, the article states that "President Obama has made the 'reset' of Russian-American relations a top foreign policy priority, and the quiet collaboration over the spy scandal indicates that the Kremlin likewise values the warmer ties."

I like that "warmer ties" doesn't indicate trust—both countries are still running around spying on each other—it just means we've got a gentleman's agreement in place for when our spies get caught.