BBC News Documentaries

Artificial intelligence and machine learning are the revolutionary technologies of our era. Intelligent machines are already reshaping our world; the speed of their improvement is accelerating, and every day there are more things they can do better than us. There are risks too, of course, but the opportunities for society are enormous.

Democrat Kamala Harris will face Donald Trump in November's US presidential election, but who is she and how did she rise to the top of her party?

Money, art, politics: What we know about how the secret Banksy empire works.