Put on by UNESCO, World Radio Day is intended to draw attention to the vital role that radio plays in keeping people safe, informed and connected the world over. Worldview speaks to John Dinges, a veteran NPR journalist and professor at the Columbia School of Journalism, who is taking part in a panel discussion at UN headquarters to celebrate the day. As a reminder of the vital role radio plays in less developed countries, Jan McArthur of Internews, an organization that trains journalists overseas, explains how she started Salam Watandar, a network of 53 radio stations throughout Afghanistan.