With more and more frequency the newspapers are reporting instances of school children distributing disks of pornographic images which they have downloaded from the net and recently a university student was found to be operating such a site for material. On November 11, an Associated Press release (Phillips,1994) reported that Carnegie Mellon University had decided to block its users from accessing sexually explicit materials through the Internet: the university's president feared that the university could be prosecuted under state pornography laws if it did not control the access. Within the last week Towson State has prevented access to all of the alt.* groups on the Usenet which include alt.binaries.pictures.* which has sexually explicit pictures. …