Russian authorities in the region of Kursk -- close to the border with Ukraine -- said today a drone had hit an airfield. Does that signal a new phase in the war? Christiane asked US Under Secretary for Political Affairs Victoria Nuland, just back from visiting Kyiv where she met with President Zelensky.  Also on today's show: Former Israeli Diplomat Ido Aharoni Aronoff; Caoilfhionn Gallagher, lead international counsel for Chinese billionaire Jimmy Lai; New York Times photojournalist Lynsey Addario.To learn more about how CNN protects listener privacy, visit cnn.com/privacy