An invisible line, known as the 180 DEGREE LINE or AXIS OF ACTION, runs through the space of the scene. The camera can shoot from any position within one side of that line, but it may never cross it. This convention ensures that the shot will have consistent spatial relations and screen directions.
shea.mit.edu › glossary › filmlexicon
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1. The rights of a photographer revolve around photographing public activities.
2. An ethical photographer is someone who takes public activities and not private events unless he has permission.
3. The First Amendment talks about the freedom of speech which can cover photography only if there was a message that was going to be conveyed to a certain audience.
4. There should be limits to editorial photographs. Not everyone are prepared to look at certain photographs and understand it. 
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I think that one of the misconceptions that Columbus had about the world is that it was flat when as we know now it's very much not. I hope this helps :)