In this Feb. 7, 2014 photo, workers cultivate small clones of a special strain of medical marijuana known as Charlotte’s Web, in a remote spot in the
In this Feb. 7, 2014 photo, workers cultivate small clones of a special strain of medical marijuana known as Charlotte's Web, in a remote spot in the mountains west of Colorado Springs, Colo. Charlotte's Web is a proprietary strain of marijuana in which the psychoactive THC has largely been bred out, and the other cannabinoid compounds thought to be medically useful accentuated. Increasing evidence that the pot strain is helping some children with epilepsy has led more than 100 families to relocate to Colorado for treatment since last summer, when success stories about Charlotte's Web began circulating via social media. ((AP Photo/Brennan Linsley))