Sobre este episodio
Teachers have been praised for their fast thinking after Monday's mass shooting at a school in Nashville. Two Blackhawk helicopters have crashed in Kentucky. Scientists are warning about more potentially devastating side effects of Antarctic ice melting. FIFA says Indonesia can't host the mens' under 20s World Cup this year - we'll tell you why. Plus, some tech leaders want to press pause on AI development.To learn more about how CNN protects listener privacy, visit cnn.com/privacy