In honor of Brian Williams hard-won journalistic credibility

Ace is the place:

Brian Williams Has Been Lying About Supposedly Being Shot Down in a Helicopter In Iraq Since 2003; Now Says He "Misremebered" Some Details and Is "Sorry"

Brian Williams: You Should Trust My Reportage Because of All the "Sand Snakes" (Ground to Air Missiles) I've Had to Personally Dodge to Deliver the News to You

From the archives (2007):

Is Brian Williams going nuts?

Note that incidents of the sort Williams invented were central to his argument for why people should trust him. Oh, and why NBC should pay him millions of dollars.

Question:

Falsus in Uno, Falsus in Omnibus?

Exit question:

At what point does NBC News become complicit in his lies? At what point does the failure to fire him mean that they approve of his fabrications?