The Download: Worldcoin under investigation, and food's complex climate future

It's a project that claims to use cryptocurrency to distribute money across the world, though its bigger ambition is to create a global identity system called "World ID" that relies on individuals' unique biometric data to prove that they are humans. Sam Altman, the CEO of OpenAI and one of the biggest tech celebrities right now, is one of the cofounders of the project, which launched on July 24 in more than 20 countries. But it's already being investigated in at least four jurisdictions around the world. Read our story to find out why. This story is from The Technocrat, Tate Ryan-Mosley's weekly newsletter all about tech, policy and power.