In the UK in the late 2000s there were a series of Iraq war inquiries to try to "bring to account" the politicians who had tricked the public. Some of the manipulations uncovered were comically bad. Evidence which Colin Powell had described as "exquisite" in a critical UN meeting turned out to be somebody's PhD thesis from 1990 with some words changed to make it sound more contemporary and sinister.
But the inquiries were a whitewash and none of the politicians suffered any repercussions for what they had done. People tried to do a citizens arrest on Tony Blair a couple of times. But in the end they just got away with it. Blair minted a personal fortune out of the subsequent oil deals, but on the rare occasions that he appears in the mainstream media these days he looks like a wraith.