Well there we have it then, censorship should only be in force when not doing so deprives someone of life, liberty, pursuit of happiness. To put it another way, do not deprive a person of their self, their property, or efforts of their work. Child porn when get caught under depriving children, those unable to consent legally, to their happiness, if not liberty and in some cases their life. Video threats to living people would likely fall under all three as well.

As in life, our actions should never deprive another of their rights to live and pursue their non infringing rights.you have a right to self, your property, and the efforts of your work. we balance some of the latter in order to provide a more orderly society and benefit those who cannot fully sustain themselves.

A simplistic view I admit but it is when people start having exception after exception we end up with no real liberty but a tyranny of violations. Every thing you do would bound to be covered to where even no action is a wrong.