The first in a new series of compelling radio from around the globe, presented by Emily Buchanan. This week the subjects are about and for children, including the story of Ana, a 13-year-old Canadian with cerebral palsy; the 100th anniversary of Swiss Alpine heroine Heidi; and Terry the taxi driver who helps tweeny New Yorkers with their arithmetic. Producer Leonida Krushelnycky. Repeated Sunday 8pm