A new video has been released of the 12 boys and their football coach trapped in a Thai cave, in which they say they are in good health. Smiling and at times laughing, they each introduce themselves one by one. They were found on Monday after nine days trapped deep in the cave by rising water, and have since received food and medical treatment. But their rescue might take months, as they must either be taught to dive or wait for the water to recede. BBC's Lebo Diseko reports.