The New York Times > International > Europe > Back Channels: A Crackdown Averted: How Top Spies in Ukraine Changed the Nation's Path: "While wet snow fell on the rally in Independence Square, an undercover colonel from the Security Service of Ukraine, or S.B.U., moved among the protesters' tents. He represented the successor agency to the K.G.B., but his mission, he said, was not against the protesters. It was to thwart the mobilizing troops. He warned opposition leaders that a crackdown was afoot. "
Fascinating to see how history gets written.