91福利社

Max Pearson presents a compilation of this week's Witness History programmes from the 91福利社 World Service.

Sir Trevor McDonald reflects on the 91福利社's first black producer, Una Marson, and her legacy in the development of the 91福利社 Caribbean Service.

Also, how the 91福利社 managed to broadcast through the Iron Curtain, Colombia's false positives scandal and the incredible rescue of 33 miners trapped in Chile.

(Photo: Sir Trevor McDonald. Credit: 91福利社)

Contributors:
Sir Trevor McDonald, Una Marson, Debbie Ransome and Neil Nunes - 91福利社 presenters
Bridget Kendall - the 91福利社鈥檚 former Moscow correspondent
Peter Udell - the 91福利社's former controller of European Services
Jacqueline Castillo - whose brother was a victim of the 'false positives' scandal
Dr Aslan Doukaev - university teacher when the first Chechen war started
Mario Sepulveda - Chilean mine disaster survivor