Internal Monsanto emails revealed the company wrote scientific papers concluding Roundup 'does not pose a health risk' then paid outside scientists to sign as authors. A Monsanto executive wrote that scientists would 'have their names on the publication, but we would be keeping the cost down by us doing the writing.' In 2015, scientist William Heydens suggested they 'ghost-write' another paper with Monsanto paying scientists to 'edit & sign their names.' The landmark Williams et al. (2000) paper was cited by government agencies worldwide for two decades before being retracted in November 2025 for 'serious ethical concerns.'