The U.S. and Russia seem to have fallen into a pattern over the crisis in Ukraine. When Washington ratchets up the pressure on Moscow, Russia doubles down on its support for separatists in eastern Ukraine.
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National Public Radio: U.S. – Russia relations; more carrot or more stick?
Russia's President Vladimir Putin (L) welcomes US President Barack Obama at the start of the G20 summit on September 5, 2013 in Saint Petersburg.
