Why is hemp illegal? The war against Cannabis in the United States was started in the 1930s, not because it was a particularly dangerous drug but because it was a dangerous competitor for synthetic fibers like Nylon. The development of harvesting and processing machines during the 1920s paved the way for a big comeback of hemp in the energy, raw materials, textiles and plastics markets. Markets that were under tight control of the petrochemical industries, which were dominated in the US by Dupont. Dupont, still the largest chemical corporation in the world, manufactures the lead-additives for gasoline, the sulfites and sulfates for paper production, pesticides for cotton farming, synthetic textile fibers and countless oil-based plastics. In all these areas, hemp constitutes a green alternative. Officials from the US Department of Agriculture calculated billion-dollar revenues, all of which would be lost to the (petro-)chemical corporations. An unprecedented disinformation campaign was started under the slogan killer drug to destroy the competition from hemp products. The consequences of this horror propaganda are still felt to this day. In 1982 Martin Butter, the last german hemp cultivator agreed to stop growing hemp after he was paid a considerable amount of money. He threatened to sue before the European court and would surely have won but unfortunately didn't do it.