http://www.out-law.com/default.aspx?page=7142
"The US has passed legislation which controls what website operators are allowed to put in their site meta tags. The law bans the use of words which might lead anyone to obscene content.
The Adam Walsh Child Protection and Safety Act is named after a six-year-old who was abducted in 1981 and killed. His parents have since dedicated their lives to protecting children from child predators. The law is designed to stop sites with potentially offensive material using meta tags to attract viewers under false pretences. It refers to the labels and meta tags which are seen by many search engines but not by users of sites."
