Uber will hire former Attorney General Eric Holder to investigate allegations of sexism and discrimination at the Silicon Valley car-ride company, CEO Travis Kalanick said Monday. Uber board member Arianna Huffington, Uber human-resources chief Liane Hornsey, and Uber Associate General Counsel Angela Padilla will also work on the investigation. Critics have already suggested that the team, composed mostly of Uber stakeholders, would be too lenient on the company. The probe follows a essay published by a former Uber engineer, who said she and her fellow female co-workers were repeatedly subjected to sexual harassment, denied opportunities for advancement, and threatened when they brought their complaints to HR. The essay also alleged widespread dysfunction among staff. In a memo to Uber employees, Kalanick said the company would release a diversity report, which it has previously declined to do, despite calls from public officials.