Any advice on teaching censorship and obscenity in an undergraduate class?

My main concern is how to approach censorship as it relates to topics like hate speech, nudity/art, and religion.

I will be relating it to the first amendment, of course, and then relating it to specific examples. Then, over the last few weeks of class, they are required to present on their own.

I would like for my class to be able to discuss words like “nigger” and look at examples of Maplethorpe, etc. Do you have suggestions in terms of how to present this? Many of my students are minority students.