Disturbing images from a town near Kyiv appear to show a mass grave and dead civilians in the street. Now, the U.S. and international bodies are taking steps to further punish Russia, among renewed accusations of war crimes. CNN Chief National Affairs Correspondent Jeff Zeleny breaks down some of the images from Bucha, and the feasibility of prosecuting war crimes on the international stage.

To learn more about how CNN protects listener privacy, visit cnn.com/privacy