Jimmy-
It has been called to my attention that the concept of "fair use" may be significantly more restricted in the UK than in the US, to the point that most of what is fair use in the US may not be in the UK.
Wikipedia is hosted in the United States. US copyright law applies, and US law recognizes the concept of fair use. UK third parties who want to re- use our material merely need an easy way to filter out those images, that's all. We should probably also have some procedure for determining whether an image truly is fair use, i.e. a discussion phase that every such image must undergo where arguments for and against the matter are heard.
Regards,
Erik