The helicopter carrying Iranian President Ebrahim Raisi and his foreign minister crashed on Sunday as it was crossing mountain terrain in heavy fog. We talk to Alex Vatanka, the founding Director of the Iran Program at the Middle East Institute. Volodymyr Zelenskyy marks five years in power as Ukraine's president. We talk to Sergey Sanovich, a Hoover Fellow at the Hoover Institution, Stanford University. And the first U.S. Black astronaut candidate from the 1960s flew on the Blue Origin space craft more than 60 years after his selection as an astronaut.