The important part in the lies is, accidental lies vs. intentional lies.
Anybody can tell a lie by mistake. When he sees his mistake, the honest thing to do is own up to it, and start telling the truth. Those who are intentionally lying won't change except to save their own skin.
The other side of it is, in something as big as what goes on in government, the media, and the medical, it's often difficult to determine what the truth really is. This means that one can't always judge who the liar is, to say nothing about if the lies are accidental or intentional.
Lol, where in the paraller universes Tucker owned his lies? Or Drump that never ever has admitted of being wrong or to lie.
And no, it's not difficult to detrmine what the truth is, but it's the literal goal of russian trolls and yours i guess to try make it more difficult. Their goal is to spread mistrust, confuse gullible people and use scientists and experts in quotation marks.