Italy's Mont Blanc glacier is at risk of collapsing due to melting ice linked to climate change. Some roads in a nearby town have been closed as a precaution. Host Peter O'Dowd speaks with a glaciologist who was in the region last year about what the main concerns are for scientists. Also, in Montana, a fourth person has been injured in a grizzly bear attack according to local officials. We get the latest from a wildlife coordinator in the area about the recent attacks.