Nvidia CEO Jensen Huang quits

The chief executive and co-founder of Nvidia, Jensen Huang, has quit. His resignation has triggered a slump in one of the world's most valuable companies, that has been crucial for the technology that powers artificial intelligence. Also: Some young people could see their benefits reduced under a radical overhaul of the welfare system which is due to be set out next week. And people with Tourette syndrome say a new wrist-worn device is changing their lives. (Image: EPA/Shutterstock)