This morning shortly after 9 clock Greenpeace climbed on the roof of the Federal Office of Public Health (BAG). Above the buiding floats an oversized Novartis maize corn and climbers attached a banner reading: "Gentech-Mais - Non merci!" ("Genetically engineered corn - No thanks! ") on the wall. Greenpeace calls on the BAG to reject the request of Novartis on the approval of genetically engineered Bt-maize as food.