What can White House do in Ukraine?

Ukrainian army troops receive ammunition, with a Ukrainian flag in the background, in a field on the outskirts of Izyum, Eastern Ukraine, Tuesday, April 15, 2014. An Associated Press reporter saw at least 14 armored personnel carriers with Ukrainian flags, one helicopter and military trucks parked 40 kilometers (24 miles) north of the city on Tuesday. (AP Photo/Sergei Grits)
Ukrainian army troops receive ammunition, with a Ukrainian flag in the background, in a field on the outskirts of Izyum, Eastern Ukraine, Tuesday, April 15, 2014. An Associated Press reporter saw at least 14 armored personnel carriers with Ukrainian flags, one helicopter and military trucks parked 40 kilometers (24 miles) north of the city on Tuesday. (AP Photo/Sergei Grits)

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    What can White House do in Ukraine?

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U.S. backs Ukraine military action, but will not give "lethal aid" to Kiev's forces. CNN's Michelle Kosinski reports.