Flower Power Takes on Land Mines: "A Danish biotech company develops a genetically modified flower that changes color when the plant is close to a land mine. The genetically modified weed has been coded to change color when its roots come in contact with nitrogen dioxide evaporating from explosives buried in soil. [...] Within three to six weeks from being sowed over land mine- infested areas, the small plant, a Thale Cress, will turn a warning red when close to a land mine. "
# Jan 30, 2004