VICE Season 4 Episode 4 2016

VICE Season 4 Episode 4: Isobel Yeung reports on the doctors and researchers who are making incredible strides in the fight against blindness. Hamilton Morris travels to California's infamous Emerald Triangle to meet struggling mom-and-pop growers, and visits with the investors and entrepreneurs eager to cash in on the next big consumer market--even if it could put the small guys out of business.