Tensions are escalating as the Houthis ramp up their attacks on Saudi Arabia. The Saudi government has long backed the Yemeni government forces in their fight against the Houthis, but this is the first time the country has found itself so vulnerable. Correspondent Nic Robertson joins the show for more on this. Also on today's show: former Ukrainian Foreign Minister Dmytro Kuleba; anti-death penalty campaigner Sister Helen Prejean; Caitlin Dickerson, Staff Writer, The Atlantic  Learn more about your ad choices. Visit podcastchoices.com/adchoices