It would appear that IRAN signed the Universal Declaration Human Rights document.

Ref. : 217 (III) A — dec. 1948

http://www.un.org/fr/documents/view_doc.asp?symbol=A/RES/217(III)

Translated in over 500 languages :

http://www.ohchr.org/FR/UDHR/Pages/SearchByLang.as

IRAN’s people & multimilleniums of History deserve much better than these mafia-like activities.