For those times when a head cold seems to be coming on, more and more people are reaching for an herbal preparation instead of a box of cold pills. Herbalists are pleased that people are rediscovering the traditional remedies that saw our ancestors through many an illness. But some say the new-found popularity of old fashioned medicinal plants also poses a serious threat to some scarce wild species. As Andrea deLeon of Maine Public Broadcasting reports, some herbalists are saying the government should now control the picking of rare medicinal herbs.