Would Jock Sturges be arrested/hassled today?
Yes and no.
We are hyper sensitive to the whole child porno stuff today, but also since he was arrested once and I believe he won his case as well as became world famous, I doubt that he'd be arrested again.
As for the intent issue that Claire mentioned, I believe "intent" is a basic concept in law. Just because a pedophile likes pictures of naked children, shouldn't mean that people that take them should be prosecuted. Pedophiles probably like picture of clothed children as well. Should we be be held responsible for the deviant actions of others. On the other hand if pictures are taken for the express use by and for pedophile then that is probably a different matter.
It's a tricky question.
People photographing children in any sort of sexual situation should of course be taken out and shot.