By "porn" I'm assuming you mean xxx-rated adult videos and magazines. Not to split hairs here, but standards of what is pornographic are set by each community and thus subject to municipal control, so what is considered pornographic in Little Rock, Arkansas, might be considered erotic art in New York City.
Porn is demeaning to and objectifies women. Period. Kratzer, porn IS exploitave, and some porn can get downright dirty, too. I would never have porn in my house because I have a 16 year old daughter, and I hope the parents of the boys she dates feel the same way I do. Kratzer, I hope my daughter never dates your son if you feel like porn depicts normal relationships between two (or more) partners and you keep videos around for his viewing pleasure.
In spite of my personal feelings about porn I would be opposed to a world-wide ban on it because we all should be allowed to make our own choices, good or bad. I view porn in the same light I view drug or alcohol abuse- Not one good, productive thing has ever come from them, but if you want to view it, shoot it, drink it or snort it then knock yourself out.
Now I have a question for all of you who feel porn is harmless- How do you feel about condom distribution in public schools? Kratzer mentions STDs and unwanted pregnacies are a problem among our society, so why not distribute condoms in schools? I would be for that before I'd be in favor of distributing copies of "Debbie Does Dallas" to the kid who's dating my daughter.