Here's the discussion of "fair use of non-free image" on this image. https://en.wikipedia.org/wiki/File:Uc_Davis_Pepper_Spray_Incident.jpg https://en.wikipedia.

Here's the discussion of "fair use of non-free image" on this image. https://en.wikipedia.org/wiki/File:Uc_Davis_Pepper_Spray_Incident.jpg https://en.wikipedia.org/wiki/File:Uc_Davis_Pepper_Spray_Inc... They acknowledge that it might be copyright infringement, but feel it's 'fair' since it's a unique historical image and there aren't 'free' images which would serve as a substitute.