WashingtonPost.com: Pornography Prevalent on File-Sharing Services: Teenagers — who are among the heaviest users of sharing services — might accidentally be exposed to pornographic files because they often have innocuous labels that users often seek, the reports say. And parents might not realize how much pornography is available on the services, according to the studies produced by the General Accounting Office and the House Committee on Government Reform.
It’s really simple. If you don’t want your children exposed to any ideas, imagery you wouldn’t approve of either don’t let them use the internet or use the internet with them.