Blame Karan for this one.
Within a few years we could be using genetically engineered plants to warn of landmines:
The genetically modified weed has been coded to change color when its roots come in contact with nitrogen-dioxide (NO2) evaporating from explosives buried in soil.
Within three to six weeks from being sowed over land mine infested areas the small plant, order a Thale Cress, will turn a warning red whenever close to a land mine.
According to data compiled by Aresa, more than 100 million land mines have been spread out in 45 countries, hidden killers that often remain for years after a conflict is over.
Oestergaard said the problem of sowing the seeds in a potential land mine could be overcome by clearing strips through a field by conventional methods or by using crop planes.
Currently land mines are mostly removed by putting a stick into the ground to locate the mine, then removing it and detonating it. Dogs and metal detectors are also often used.