CalSTRS: We want Apple to step up and respond

CNBC's Scott Wapner speaks with Anne Sheehan, CalSTRS, about partnering with JANA Partners calling on Apple to address smartphone addiction in children and teenagers as well as CalSTRS holdings in other companies like Coca-Cola and Activision Blizzard. Barry Rosenstein, JANA Partners founder & managing partner, and Charles Penner, JANA Partners, weigh in.