Signal's Meredith Whittaker: 'These are the people who could actually pause AI if they wanted to'

Meredith Whittaker is the president of Signal – the not-for-profit secure messaging app. The service, along with WhatsApp and similar messaging platforms, is opposing the UK government's online safety bill which, among other things, seeks to scan users' messages for harmful content. Prior to Signal, Whittaker worked at Google, co-founded NYU's AI Now Institute and was an adviser to the Federal Trade Commission. After 10 years at Google you organised the walkout over the company's attitude to sexual harassment accusations, after which in 2019 you were forced out. How did you feel about that?