Analysis: Agreement means little in Ukraine

U.S. Secretary of State John Kerry, left, talks with Russian Foreign Minister Sergey Lavrov at the start of a bilateral meeting to discuss the ongoing situation in Ukraine as diplomats from the U.S., Ukraine, Russia and the European Union gather for discussions in Geneva Thursday, April 17, 2014.  Ukraine is hoping to placate Russia and calm hostilities with its neighbor even as the U.S. prepares a new round of sanctions to punish Moscow for what it regards as fomenting unrest. (AP Photo/Jim Bourg/Pool)

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    Analysis: Agreement means little in Ukraine

Agreement reached by top diplomats on the crisis in Ukraine mean little on the ground. CNN's Nick Paton Walsh reports.