.-- the company's cofounder mike lynn says the machine is marijuana. but he says this small machine has an even bigger advantage. --mike lynn/hound labs-- --00:01:50-02:04-- --in breath thc only stays for a really brief period of time. and so unlike saliva or blood in that in breath it just doesn't. it only shows up for a few hours.-- that means law enforcement can better determine if a driver is really impaired from recent use. --mike lynn/hound labs-- --00:06:00-13-- --if you're the cop you have no idea if your saliva test is positive okay correlate that with driver impairment.-- with more states legalizing marijuana, lynn hopes this device will make roads safer by getting impaired and make sure those who are using marijuana legally can keep driving. for the now, i'm kumasi aaron. "don't let the bed bugs bite"..... is not a saying..... that should ever apply.... to a grocery store. but next.... on 13 action news... live at 6:30.. we're meeting a man who says.... he was bit by the bugs..... inside a well known chain. plus.. for the first time in nearly