Forget those intrusive airport security scanners, within a few years genetically modified plants could be detecting bombs at airports.
Developed by Colorado State University biology professor June Medford, the plants have been manipulated so that they turn white almost instantly when certain types of explosives are in the air around them. Medford says that the goal is to make the plants as sensitive as a dogs nose.
Funding for the project has come from DARPA and the Defense Threat Reduction Agency, who see the plants as an additional line of defense at airports, sports stadiums and government buildings.
Medford says that the plants could be in use within four years.