Reports that psychology students at a UK university were separated by race to learn about ethnicity and "whiteness" have prompted a row over racism and mental health. Some of the sessions, The Telegraph claims, were designed for white students to take responsibility for colonialism. King's College London says the sessions have been mischaracterised and that they were open to all students. We dig into what's really been going on, and ask whether separate spaces for different ethnicities are helpful or divisive. Plus, to what extent do mental health services in the UK have a problem with race - we hear the key statistics. And we explore a phrase that keeps coming up in this debate - "critical race theory".

Presenter: Adam Fleming Producers: Emma Close, Josephine Casserly, Simon Tulett Production coordinator: Janet Staples Editor: Penny Murphy