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Re:Errol Morris's Secret Weapon for Unsettling Interviews: T... by forgottenpass on Monday July 11, 2016 @10:35AM (#12071293)
This is also how teleprompters work.

https://en.wikipedia.org/wiki/Teleprompter

Re:Errol Morris's Secret Weapon for Unsettling Interviews: T... by Captain_Usher on Monday July 11, 2016 @10:49AM (#12071404)
Fun fact: once you know to look, and provided they're close enough to the camera, you can sometimes see the view-ee's eyes making small side to side movements as they read lines of text from the prompter.
Re:Errol Morris's Secret Weapon for Unsettling Interviews: T... by coldtea on Monday July 11, 2016 @05:56PM (#12075050)
Once you know to look? In most cases I've seen it's totally evident, even if its done by the most experienced news presenter...