Russian, Ukrainian Ambassadors Trade Blame At UN Session

At an emergency session of the UN Security Council, U.S. Ambassador to the UN Samantha Power said that Russia is behind what she called "coordinated professional military actions" in Ukraine. Russian Ambassador Vitaly Churkin accused "nationalist radicals" in Ukraine of fomenting instability, while Ukrainian Ambassador Yuriy Sergeyev said that Russia is responsible for state-sponsored terrorism in Ukraine. (Reuters video)