Porn website age verification laws

On Jan. 15th, The Supreme court is expected to hear a case about Texas (and other states) requiring so-called adult websites (porn sites) to get age verification before allowing people to access their websites.  The case revolves around first amendment issues.  Obscenity is already illegal in the United States but this case does not directly address that issue but is limited to the age verification issue.  Lower courts have taken mixed stances when dealing with age verification laws.  Mark Haughwout discusses this case as well as current laws regarding Obscenity, Indecency and Profanity.