As Russia appears to prepare for a large-scale invasion of Ukraine, the United States and NATO allies scramble to find a diplomatic resolution.

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Russia is close to completing preparations for what appears to be a large-scale invasion of Ukraine that could lead to 50,000 civilian casualties and a humanitarian crisis with millions of refugees fleeing the chaos, according to U.S. military and intelligence assessments. 

Intelligence reporter Shane Harris breaks down how the diplomatic efforts to de-escalate on the border are going –– and where the skepticism of all sides in the conflict comes from.