The “independent” watchdogs that are supposed to root out waste, fraud and corruption inside U.S. government agencies often help cover it up, according to a scandalous newspaper exposé that reveals sometimes they actually become the lapdogs of the agencies they’re charged with overseeing. Published this month by the capital area’s conservative newspaper, the four-part series exposes the state of inspectors general tasked with keeping an eye on the government. In all there are 72 inspectors general—with heads appointed by the president—thanks to a decades-old law that passed with strong bipartisan support in Congress. The idea is to have a completely...