Could Ukraine crisis start Cold War 2?

Pro-Russian supporters attend a rally in front of the security service building occupied by Pro-Russian activists in Lugansk, Ukraine, on Monday, April 14.
Pro-Russian supporters attend a rally in front of the security service building occupied by Pro-Russian activists in Lugansk, Ukraine, on Monday, April 14.

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    Could Ukraine crisis start Cold War 2?

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The war of words between Russia and Ukraine shows no sign of stopping. CNN's Diana Magnay reports.