Thailand cave rescue: Boys prepare with diving lessons

Officials in Thailand say they won't be taking any risks getting 12 trapped boys and their football coach out of Tham Luang cave in Northern Thailand. The group is now having swimming and diving lessons in preparation for their rescue. Experts have cautioned that taking inexperienced divers through the dangerous corridors of muddy, zero-visibility waters would be very risky. The boy's classmates have visited the entrance of the cave to thank rescue workers and sing-songs. Correspondent in Thailand Richard Ehrlich tells Susie Ferguson the latest on options to get the boys out of the cave.