The problem is not the existence of miscreants; they are an inevitable part of the human condition, from which no institution of any size will ever be immune. The challenge today is the ethos of law-enforcement. You see it in texts expressing disdain for lawmakers; in the above-it-all contempt for legislative oversight; in arrogant flouting of the Gang of Eight disclosure process for sensitive intelligence (because the FBI’s top-tier unilaterally decides when Bureau activities are “too sensitive” to discuss); in rogue threats to turn the government’s law-enforcement powers against Congress; and in the imperious self-perception of a would-be fourth branch of government, insulated from and unaccountable to the others — including its actual executive-branch superiors.