I'm guessing you're referring to the series of events consisting of (1) the original WSJ investigative report, (2) the Theranos rebuttal pointing out a missing

I'm guessing you're referring to the series of events consisting of (1) the original WSJ investigative report, (2) the Theranos rebuttal pointing out a missing piece of information in WSJ's report, and (3) WSJ coming back the very next day after the Theranos rebuttal with the very information they were called out on. It was all very beautiful to observe. ;)