Ex-Biotech Scientist Theirry Vrain, gives a TED Talk on the Dangers of GMOs. Thierry Vrain is a former research scientist for Agriculture Canada. He now promotes awareness of the dangers of genetically modified foods. When the first GMO crops were introduced in the mid-1990′s, they were marketed (and received) as ‘magic’ — a perfectly safe, practically water-like substance that erased pest problems without changing the quality of the food. However, Thierry explains the rising phenomenon of super weeds, genetic pollution, antibiotic resistance and food allergies, all attributable to GMO agriculture.