Alnylam CEO: Whole new way to treat disease

6:38 AM ET Fri, 11 Dec 2015

John Maraganore, Alnylam Pharmaceuticals president & CEO, and CNBC's Meg Tirrell, discuss the company's research into RNAi therapy, a process which turns off the gene's ability to "do something bad." Also Maraganore weighs in on drug pricing.