As tensions build, U.S. has ‘zero options’ in Ukraine

Aired: 3/2/2014 | 0:04:35 | Clip
As tension between the United States and Russia escalates, and Secretary of State John Kerry announced plans to visit Kiev on Tuesday, analysts are looking to history for clues for what may happen next. Stephen Cohen, professor emeritus of Russian Studies at New York University and of politics at Princeton University joins Hari Sreenivasan for more.