How much are Americans willing to get involved in Ukraine?

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http://www.bbc.com/news/magazine-27244152

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Events surrounding Ukraine continue to move at a rapid pace, as violence spreads across the country and Ukraine's acting president reinstates military conscription.

Meanwhile, the world watches to see just how far the Obama administration will get the US involved.
But with foreign policy often influenced by public opinion - what does the American public think?
A survey by the Pew Research Center and USA Today found that most Americans support tougher sanctions against Russia.
However, support for military measures and Obama's handling of the overall crisis is more tepid.
The BBC's David Botti takes us through what the survey discovered.