Margaret Karembu is not a big fan of Greenpeace. The Kenyan scientist leads the Environmental Sciences department at Nairobi’s Kenyatta University, and is reasonably proud of the food technology which produces advances like greater-yielding banana plants. Speaking in London recently, Karembu noted that the anti-biotech nannies at Greenpeace always have something to say about food technology, but when they speak “[w]e don’t get data; we get opinions.” New Scientist magazine reported on Karembu’s scathing candor. She continued: “Greenpeace has a very loud voice, but most of what they say is not factual, and they don’t provide alternatives. We can’t make policy based on people’s opinions.”