Then, after Vietnam, an ethos of exposure swept the culture. The assumption among many journalists was that the establishment may seem upstanding, but there is a secret corruption deep down. It became the task of journalism to expose the underbelly of public life, to hunt for impurity, assuming that the dark hidden lives of public officials were more important than the official performances.
Gee, I wonder where that assumption of "secret corruption deep down" came from? Rick Perlstein's Nixonland has answers on almost every page, documenting ten years of relentless government lying about Vietnam as well as the pervasive criminality and war criminality of the Nixon White House.
Take, for example, the response of Nixon's henchman to columnist Jack Anderson's exposure of a memo documenting ITT's swap of a $400,000 campaign donation for a promise that the Nixon Justice Department would lay off on antitrust enforcement: