Expert: Energy deal a big win for Russia

Russia's President Vladimir Putin (L) applauds during an agreement signing ceremony in Shanghai on May 21, 2014, with Gazprom CEO Alexei Miller (C) and Chinese state energy giant CNPC Chairman Zhou Jiping (R) attending the ceremony. China and Russia signed today a monumental, multi-decade gas supply contract in Shanghai, CNPC said, with reports saying it could be worth as much as $400 billion. AFP PHOTO / RIA-NOVOSTI / POOL ALEXEY DRUZHININALEXEY DRUZHININ/AFP/Getty Images

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    Expert: Energy deal a big win for Russia

CNN's Fionnuala Sweeney speaks to Mihaela Carstei about the $400B gas deal recently struck between Russia and China.