This article was originally published in the San Francisco Chronicle. By Nathan Donley and Carey Gillam It’s been three weeks since a San Francisco jury found that exposure to Monsanto’s Roundup herbicides contributed to former school groundskeeper Dewayne “Lee” Johnson’s terminal cancer and awarded a stunning $289 million in damages to the 46-year-old father. And … SF Roundup Case Demonstrates Importance of Independence in Scientific Evidence