The Voyeur in Photography as it Relates to the Photographer's Intentions

We talk about street photography, street portraiture, and intentions often on this site; but I feel that the idea of the voyeur is something that we genuinely need to bring up again. I'm not one to say necessarily that voyeurs should necessarily be berated, but that I instead think that one's intentions should be put into perspective. To get right to the meat of this problem, I want to tackle the issue of photographing children--one that is often brought up. Many photographers will say "No, that...