CNN Weed Dr. Sanjay Gupta Reports February 2, 2014 06:38:00
>> how much is this worry you, 36% thc confiscated? >> very dangerous material. for someone that is not experienced in marijuana smoking takes some of this, and theyre going to go into the negative effects of the high, the psychosis, the irritation, irritability, paranoia, all of this. >> while not all the plants are this high, theres no question he has seen a trend. in 1972 the average potency was less than 1% thc. now its nearly 13%. >> are people becoming more obsessed with high thc marijuana...
Source: archive.org