Media representations of the “enemy”

I’ve just agreed to write an article for our seminary’s journal (Word and World) on media representations of “the enemy” and implications of such for pastoral ministry. Some possible questions I’m thinking about: why do we need “bad guys”? how does stereotyping serve media interests? what does Christian faith offer in response?

If you have ideas of additional questions I should be asking, or books/films/songs I should be engaging, PLEASE let me know! This is not a topic I know much about, but it's one I think is pretty important. I've got a lot of learning to do before I can come up with something useful to write. Any help would be greatly appreciated.