The Center for Democracy and Technology issued a press release and a report (PDF) contending that a recent Pennsylvania law (18 Pennsylvania Statutes Sec. 7330) requiring ISPs to remove or disable access to Internet pornography upon notification by the state Attorney General violates constitutional principles of due process. The law also results in the blocking of sites with no objectionable content due to the prevalence of shared IP addresses among unrelated sites. See also my posting today referencing Ben Edelman’s report on IP addresses and censorship issues.