Today President Bush was called upon for the second time to comfort a nation in mourning. He telephoned the families of the lost astronauts and then addressed the nation from the cabinet room.
NPR's Scott Simon talks with strategic studies professor Phillips O'Brien of the University of St. Andrews in Scotland about the significance of Russia's latest military offensive in Ukraine.
A Crimean Tatar couple in Ukraine, displaced by Russian troops, sees parallels to the Soviets' forced deportation of 200,000 Tatars from Crimea 80 years ago.