Good Morning Silicon Valley had this interesting report last week. The humanitarian uses of this research are obvious: bq. "A genetically modified weed has been developed that could someday be used to detect landmines. Sow it over a landmine field and Thale Cress, which in its original state turns brown when subjected to stressful conditions, will turn a warning red when its roots detect traces of explosives." Just don't mow the red ones, Johnny...