Microsoft unveils a new (and hopefully not racist) chat bot

Tay gave chat bots a bad name, but Microsoft's new version has grown up. Microsoft unveiled a new chat bot in the U.S. on Tuesday, saying it's learned from the Tay experiment earlier this year. Zo is now available on messaging app Kik and on the website Zo.ai. Tay was meant to be a cheeky young person you could talk to on Twitter. Users tried -- successfully -- to get the bot to say racist and inappropriate things. Microsoft pulled the bot offline, and its failed experiment was used as a cautionary tale for how not to create artificial intelligence.