AT&T's CEO isn't sure why his corporate culture memo went viral, but he says it has spurred 'the right kind of dialogue'

Brian Snyder/Reuters

John Stankey had a hunch his now-legendary memo on AT&T's corporate culture might eventually become part of the public domain, but the scale of the reaction still surprised him.The telecom giant's CEO made his first comment on the reaction to his words on Tuesday morning on CNBC, several weeks after Business Insider exclusively obtained and published the document.