US Ambassador to the UN Linda Thomas-Greenfield says Russia's arsenal inside Ukraine includes weapons banned under the Geneva Convention. Her claim comes amid violent new clashes, as Russia makes plodding but important new gains in and around major Ukrainian cities. More negotiations are scheduled, but there's not much optimism they'll produce anything. We cover it all in today's episode, which includes multiple live reports from Ukraine. To learn more about how CNN protects listener privacy, visit cnn.com/privacy