https://www.theguardian.com/technology/2018/mar/29/sheryl-sandberg-facebook-cambridge-analytica >As Facebook faces scrutiny over data harvesting, the Lean In author and architect of the company’s controversial business model has kept a low profile >In the wake of the Cambridge Analytica data harvesting scandal, there has been a glaring lack of leadership from Facebook. Almost five days of silence passed before its CEO, Mark Zuckerberg, faced the public with a post to his Facebook profile and a series of well-rehearsed interviews with handpicked media outlets.