There’s this new dynamic where journalists now sit on the same venue with one another all day long, which is twitter. They’re constantly monitoring how they’re being judged and assessed by their peers. There’s immediate feedback to whatever they do. So if they publish something that their peers dislike they get attacked and they get denounced and they get condemned– which nobody likes. And if they do something that is popular they get rewarded and praised and retweeted–and their social media following grows. It is, I think, the most powerful tool of generating groupthink that I’ve seen in my life time. And there’s nothing worse in journalism than groupthink because journalists ought to be the ones pushing back against orthodoxies and conventions.
— Glenn Greenwald