Mindf*ckFreewheeling and profane Wylie covers plenty of ground, explaining in illuminating and often scary detail how Cambridge Analytica exploited the data to create Facebook pages that would needle "neurotic, conspiratorial citizens", propagating an outraged solidarity. New York Times What if you could peer into the minds of an entire population? What if you could target the weakest with rumours that only they saw? In 2016, an obscure British military