We need to learn from those past mistakes, from those past lessons, to make sure we do not repeat these failures the next time a window of opportunity for change in Russia opens, - says Russian oppositionist Vladimir Kara-Murza,

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Seven weeks after he was released from a Siberian penal colony in a historic East-West exchange, Kara-Murza did not say how he thought Putin would leave, but argued Russia must not squander what he said would be a narrow sliver of time to establish a democratic government,