​It’s been two-and-a-half years since the United States government unveiled an insider threat program to keep classified networks and sensitive intelligence secure, but the officials in charge would literally rather storm away than speak about it. From the floor of Congress last Thursday, US Senator Chuck Grassley (R-Iowa) acknowledged that the interagency Insider Threat Task Force established in 2012 “for deterring, detecting and mitigating” future potential risks “was intended to train federal employees to watch out for insider threats among their colleagues.” But media reports in the years and months since, as the senator put it, have suggested “that this...