Clearview AI is arguably the best known and most controversial facial recognition company in the world.
It's been at the centre of battles over privacy, personal data and freedom.
BBC North America tech reporter James Clayton spoke to Hoan Ton-That, co-founder of Clearview AI.
Three years ago, Cape Town in South Africa came dangerously close to completely running out of water when a severe and unanticipated drought turned all local reservoirs into dustbowls. To prevent this happening again, dozens of teams armed with chainsaws are seeking to protect those reservoirs in an unusual m
