Update: US Signaling Putin that Ukraine Will Be Bloody

CIA, Green Berets prepare Ukraine for guerrilla war, while Washington eyes other Russian weak points

The diplomatic game of chicken between Russia and the U.S. appears to be rolling toward a violent climax, with a U.S. official warning Tuesday that the situation is "extremely dangerous," and that Russia could invade Ukraine "at any moment." The U.S.-Russia talks appear to be “at a dead end,” as one Kremlin diplomat put it last week, even as they intend…