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.
If that's true, then we need to radically reassess our policy on fair use images, likely restricting or even eliminating them entirely, even though everything we're doing on our site is totally valid for us, we need to be extremely sensitive to the needs of people who might seek to reuse our content.
--Jimbo