The United Nations Working Group on Enforced or Involuntary Disappearances (WGEID) has started reviewing more than 300 cases of disappearances, and recently submitted information on previously accepted cases and other communications concerning more than 40 countries.
During its 92nd session, which is taking place at the UN headquarters in Geneva from 3-12 November, the panel of independent experts will exchange views on individual cases under consideration and on the phenomenon of enforced disappearances, through meetings with Government delegations, other UN bodies, families of victims and civil society representatives.
The Working Group has considered more than 50,000 cases during the 30 years since its creation, on 29 February 1980, by the UN Commission on Human Rights. (...)

The news:
http://www.ohchr.org/EN/NewsEvents/Pages/Media.aspx?IsMediaPage=true

The UN Working Group on Enforced or Involuntary Disappearances:
http://www2.ohchr.org/english/issues/disappear/index.htm

Basic information:

http://en.wikipedia.org/wiki/Forced_disappearance

http://es.wikipedia.org/wiki/Desaparici%C3%B3n_forzada

http://fr.wikipedia.org/wiki/Disparition_forc%C3%A9e

More about:

http://www.fabiomanzione.it/index.php?option=com_content&view=article&id=1835:algeria-memoriale-virtuale-degli-scomparsi&catid=46:diritti-umani&Itemid=105