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Tom Foreman: Five possible ways to end Ukraine crisis
As so often happens in big international confrontations, Ukraine is devolving into a complicated mess from which no one has yet outlined a reasonable retreat acceptable to all sides. Russia did not push into Crimea just to put its tanks in reverse and go home. The Ukrainian government can't very well tolerate a land grab within 400 miles of Kiev. And the big Western powers, including the United States, have raised so many threats and objections, they will look weak, dishonest, or both if nothing is done now.