This Week's "Planet Earth" Report --Aging Mount Agung's Deadly Eruptions to Species-Jumping Virus and Dark Secret of AI

Bali's Mount Agung Poised to Erupt An eruption at Bali's Mount Agung volcano is imminent, according to experts. Hundreds of tremors are being recorded at the site each day, and more than 75,000 people evacuated in the past few days...