I don't know if you guys are aware of this, but some people would like to take "controversial" books away from teens by removing them from schools and libraries. These are usually books with sex or swear words in them, but sometimes they're books with fantasy or violence. Most of these books are books written expressly for teens, like Laurie Halse Anderson's Speak, but a lot of them are classics like Farhenheit 451 or To Kill a Mockingbird.
The reasons these people give have to do with protecting you. They assume that if you guys read about these things, you'll go out and imitate everything you read. They also figure that if you don't read about sex or violence or swearing, you won't experience these things. That you'll be safe.
I did my very first podcast about the irony of having Teen Read Week -- which is celebrated the third week in October -- come just a few weeks after Banned Books Week, since it seems a lot of people would rather not have teens read ANYTHING. As you might guess, it's very sarcastic. Hope you like it: