It seems to me that one of the reasons why the conversations have been going 'round and 'round is there is a balancing of rights going on here. On the one hand, you the question whether the IETF meeting is fundamentally public space or not (for which some have claimed the answer is "yes" due to desire for transparancy in the standards setting processing). On the other hand, there is a disagreement on whether the right of taking photographs in a public space outweighs the right of someone who doesn't want to be photographed, such that either the presumption on whether the right of taking photographs has to be justified (for example, by those who want to record some or all of the slides of the presentation) with the default presumption being no photographs are allowed, ever. Or is it the case that "right not to be photographed" is one that has to be justified as outweighing the rights of those who might want to take photographs. (For example, if a small of group of people are taking photographs of one another, and the back or side of one person's head has been captured because they happened to be walking in the background when the photograph was being shot --- is this a case of harassment for which sanctions must be applied to the the person taking the photograph.) This is a complex question, since there lots of ways photographs can be taken. For example, suppose I am on the balcony and I take a picture of the plenary audience --- am I obliged to first check each badge to see whether or not every person in the field of view of the camera has the right colored indicating permission to take a picture. Or is this somethign that only applies when they are in the foreground, and I am "in their face" trying to take a photograph? (And I'd argue that in that case, if it is really a case of harassment, the existing harassment code is probably sufficient.) This example is also a case where the hidden assumptions of the people participating in the debate. Suppose I just want to take a picture of the plenary audience because I want to document roughly how many people there are there. ("This was the largest audience to witness a IETF plenary, period." -- Sean Spicer) Do I have to justify why I need to take a picture before we have this discussion? Or becuase notwithstanding this is public space, some abstract "right not be photographed" is so strong, so absolute, that it overcomes the presumption of general rules around taking photographs in public spaces? And if so, how does the public good to take a picture of a slide weigh against the abstract harm of the picture being taken of the back of someone's head whose badge says, "do not photograph"? - Ted