Mikhail Khodorkovsky has spent a decade in a Russian prison colony, convicted of tax fraud and other malfeasance. But before he went to jail, he was the richest man in Russia — viewed as a legitimate challenger to Vladimir Putin. Some have speculated it was that threat, more than any misdeeds, that sent him to prison. But Friday, Putin pardoned Khodorkovsky and released him from prison. That and more in today's Global Scan.