I received several responses to that piece, some stating that I was opposed to big data and analytics. Not true. As a one-time practitioner of analytics, back when it was called operations research in commercial industry, I saw firsthand the value of BD but also the very large expense and pitfalls. At the close of my first writing, I promised to follow up with a list of safety checks you should employ to avoid drowning in the big data ocean. Here they are...."