The guest editor today was Nazanin Zaghari-Ratcliffe, who was detained arbitrarily for six years in Iran. The theme of her programme is freedom and finding freedom in difficult times.
Nazanin talked about imprisonment and solidarity. She has commissioned a report on the Iranian families desperately worried about relatives arrested in anti government protests.
The programme also features Yotam Ottolenghi, whose recipes Nazanin cooked in prison.
You can catch the episode on BBC Sounds