Hmmm, that brings up the question "Can this software ever be moral or legal?"
I.e. if you were to use it outside of the context of a school, there's still the possibility a minor might steal your laptop, set it up in his bedroom, have legal (for him and her) XXX with another minor....
In the above case I think you haven't broken the spirit of US child porn laws (that they are born illegal because they can't be taken without hurting the minor(s) in question), but I could be wrong. Legally your case is much iffier. Morally it's stronger, but how much so?
I.e. if you were to use it outside of the context of a school, there's still the possibility a minor might steal your laptop, set it up in his bedroom, have legal (for him and her) XXX with another minor....
In the above case I think you haven't broken the spirit of US child porn laws (that they are born illegal because they can't be taken without hurting the minor(s) in question), but I could be wrong. Legally your case is much iffier. Morally it's stronger, but how much so?