WTO: Hard to predict impact of crisis

Ukrainian kids play under a huge yellow-and-blue Ukrainian national flag at a rally in Kiev's Independent square, Ukraine, Saturday, April 5, 2014.
Ukrainian kids play under a huge yellow-and-blue Ukrainian national flag at a rally in Kiev's Independent square, Ukraine, Saturday, April 5, 2014.

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    WTO: Hard to predict impact of crisis

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CNN's Paula Newton speaks to the WTO's Roberto Azevedo about how the Ukrainian crisis is affecting the global economy.