Mexico doesn't have freedom of speech. According to the constitution, speech can be restricted if it offends good morals, incites crime, disturbs the public order, or disrespects private lives, morals, and the public peace. In the 1930s, laws were added that restricted speech that insulted national symbols, particularly the flag and the national anthem.
(Articulos 6 y 7)
http://es.wikisource.org/wiki/Constituci%C3%B3n_Pol%C3%ADtic...
In 2008, a poet was found guilty by the Supreme Court and given a token fine for a poem.