Facebook’s social experimentation rabbit hole goes much deeper than any of us could have imagined. The Wall Street Journal reports that the controversial 2012 experiment in which the news feeds of nearly 700,000 users were altered to show either positive or negative posts was just one of hundreds that the Facebook Data Science team has conducted over the past several years. Facebook was quick to respond, attempting to downplay the effects of the experiment, but the proverbial cat was already out of the bag. A former member of the Data Science team tells the Journal that until recently, there was hardly any moderation when it came to conducting psychological tests on Facebook users. Where a typical research team would need to ask for consent before probing