The act's most controversial portions were those relating to indecency on the Internet. The relevant sections were introduced in response to fears that Internet pornography was on the rise. Indecency in TV and radio broadcasting had already been regulated by the Federal Communications Commission: broadcasting of offensive speech was restricted to hours of the day when minors were supposedly least likely to be exposed, and violators could be fined and lose their licenses. But the Internet had only recently been opened to commercial interests by the 1992 amendment to the National Science Foundation Act and thus had not been taken into consideration by previous laws. The CDA, which affected both the Internet and cable television, marked the first attempt to expand regulation to these new media.