For more than 70 years, British broadcaster and naturalist, Sir David Attenborough has brought nature to our screens.At 100, he reflects on one unforgettable moment - coming face to face with mountain gorillas in Rwanda.Here’s that encounter from 1979.

Ghana has rejected a $109m US health deal over data protection concerns.Zimbabwe has also turned down a similar offer.The BBC’s Thomas Naadi explains why some African nations are pushing back.