Aresa, A Danish biotech company, has developed a genetically modified flower that could help detect land mines and it hopes to have a prototype ready for use within a few years.
Article at Yahoo

Buried at the bottom of the article is Aresa’s assurance that these weeds won’t spread by themselves.

Oestergaard said the modified weed was infertile and unable to spread its seeds, meaning the risk was minimal that the plant would spread into unwanted areas.

While this should hinder some of the potential environmental problems (seeds blowing into neighboring food crops, possibly choking off necessary resources) it also guarantees profits for Aresa, through continuous sales. Is this a win-win situation?