Artificial intelligence pioneer Geoffrey Hinton quits Google, saying he now regrets his work.| www.bbc.com
Elon Musk among those calling for training in powerful artificial intelligence to be suspended.| BBC News
WhatsApp Messenger: More than 2 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere. WhatsApp is free and offers simple, secure, reliable messaging and calling, available on phones all over the world.| WhatsApp.com