fair use = common sense
at any rate, the concept of 'fair use', as in "I can have a pic of me standing in front of the Mona Lisa" = fair use, but "a high-res pic of the Mona Lisa intended to be used for T shirts, post cards, and wall posters" may NOT be, depending...
Or similarly for the Eiffel Tower light show, for which a copyright just SOUNDS stupid...
Copyrights were intended to stop outright PLAGIARISM, and not become revenue sources for aggressive trolls. Long ago the USA decided that photocopying parts of a book were 'fair use', as is recording a radio or television broadcast (for personal use). Other grey areas, like parody, emerged.
So I can take a Fox News photo of Mrs. Clinton, for example, and under 'fair use' put a Hitler moustache and half-bangs haircut on her, "improve" her wrinkles, give her eye redness and 'snake-eyes', make her look like she has 'rosacia' cheeks, and draw a snake tongue from between her (now) pointy devil teeth, with the caption "Mrs. Clinton speaks with forked tongue" or similar [yes, I _did_ do this], and of course that PARODY is now covered by 'fair use' and makes for a nice new meme or de-motivational poster (whatever).
yeah, the internet IS a nicer place, when we have fair use exceptions for things LIKE that..