IM and computer science prof Ken Regan has been featured on this blog many times, and long-time readers (and others) will already have some familiarity with his work catching chess cheaters. This work has already landed him in the popular media, and here's his latest appearance, fortunately (because of its prominence) and unfortunately (because it's paywalled), in the Wall Street Journal. (HT: This possibly even more interesting article on the blog Ken co-authors with R.J. Lipton.)