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As the ruble collapses, how dangerous is Russia?
As the ruble collapses, how dangerous is Russia?

Live by high oil prices, die by low oil prices. In 2008, when a master of universe at Goldman Sachs predicted oil prices hitting $180 a barrel, Vladimir Putin invaded Georgia. In spring 2014, with oil prices over $100 a barrel, he invaded Ukraine. Then the American fracking revolution hit world oil prices, Saudi Arabia decided to fight it with low prices — and Vladimir Putin's luck ran out. In a year, the ruble fell by half against the dollar. Ouch! This Thursday, Christmas Day, is the 25th anniversary of the execution of Romanian dictator Nicolae Ceausescu. It was the final major domino in the collapse of the Warsaw Pact, which led to the demise of the Soviet Union. And...