For those of you not familiar with Heinlein's Fair Witness:
The Fair Witness is a character from a science fiction novel titled "Stranger in a Strange Land" by Robert A. Heinlein
From Wikipedia:
Fair Witness is a fictional profession invented for the novel. A Fair Witness is an individual trained to observe events and report exactly what he or she sees and hears, making no extrapolations or assumptions. An eidetic memory is a prerequisite for the job, although this may be attainable with suitable training.
In Heinlein's society, a Fair Witness is a highly reputable source of information. By custom, a Fair Witness acting professionally, generally wearing distinctive white robes, is never addressed directly, and is never acknowledged by anyone present.
The character Jubal Harshaw employs a Fair Witness, Anne, as one of his secretaries. Unlike the other secretaries, she does not use dictation equipment when Jubal speaks, and can keep track of several works at once, despite Harshaw's frequent switching among them.
Fair Witnesses are prohibited from drawing conclusions about what they observe. As a demonstration, Harshaw asks Anne to describe the color of a house in the distance. She responds, "It's white on this side"; whereupon Harshaw explains that she would not assume knowledge of the color of the other sides of the house without being able to see them. Furthermore, after observing another side of the house she would not then assume that any previously seen side was still the same color as last reported, even if only minutes before.
We could use some of these in the news media.
