Detector Plants News Today

Plants like these in an airport they change color in a matter of seconds, alerting authorities. because of the potential here, the departments of defense and homeland security are investing in medfords work, so some of what is being done is secret. she does say the plants are sensitive as bomb sniffing dogs but sometimes better. here is professor medford. >> the problem is i talk to the worlds leaders who work with dogs. its really hard to get good data on dogs because dogs are very very good so...