President Vladimir Putin’s intransigence over Ukraine risks turning him into a global pariah should the blame for downing a Malaysian Air jet fall on pro-Russia rebels. The crash of the Boeing Co. (BA) 777, which had 298 passengers on board, follows by less than 24 hours the imposition of new sanctions against Russia that targeted major energy companies and banks. While the rebels denied accusations by the Ukraine government that they shot down the flight, the U.S. said this week that the separatists were being supplied with more heavy weaponry from Russia. “If there is solid evidence that it is the militants who did ... (full story)