Yesterday (September 6, 2016) saw the launch of a new book by Cathy O'Neil with the provactive title Weapons of Math Destruction: How Big Data Increases Inequality and Threatens Democracy. O'Neil holds a Ph.D. from Harvard in Math and was a tenure-track math professor until 2007, when she quit academia to join Wall Street. That fledging second career came to an end just a year later with the Financial Crisis, after which O'Neil again changed careers and became a data scientist.