The Fifth Floor: Inside the Taliban's surveillance network

There are over 90,000 hi-definition CCTV cameras in Kabul, watching everyone’s movements. What are the Taliban using this footage for? BBC Afghan Services' journalist Mahjooba Nowrouzi was granted exclusive access into the country’s top security control room. Plus, BBC Mundo's William Márquez on the history of Charles Darwin's house, and Mayuresh Gopal reports for BBC Marathi on the geological and historical relevance of India's Lonar Crater Lake.Presented by Faranak Amidi Produced by Alice Gioia, Caroline Ferguson and Hannah Dean(Photo: Faranak Amidi. Credit: Tricia Yourkevich.)