The intersection of technology and law is controversial. Some think the Internet should not (or can not) be regulated. Technologies like anonymity and cryptography make traditional kinds of regulation extremely difficult. And the fundamental end to end nature of the Internet means that even if one mode of communication is shut down, another method can be used. In the words of John Gilmore, "the Internet treats censorship as damage and routes around it."
Communications Decency Act - the controversial pornography regulation law, later partly struck down as unconstitutional. § 230 of the CDA is still used by internet service providers to shield them from liabilities of activities of users.
