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Microsoft has pulled from the internet artificial intelligence software that was designed to respond to social media comments by chatting like a teenage girl. The program's chat bot character Tay was grounded when she began to make racist, sexist and other offensive remarks. The software was designed to learn from conversations with real people.
The Rolling Stones have arrived in Cuba for a landmark free concert that expected to attract half a million people later on Friday. The concert which comes three days after a historic visit to Cuba by President Obama is being seen as another sign of real change on the island. And those are the latest stories from BBC news.