POWs on 18 August 2005. Freedom of movement In a report published in 2003 Amnesty International concluded that "Freedom of expression, association and movement continued to be restricted in the camps controlled by the Polisario Front, near Tindouf in southwestern Algeria. Those responsible for human rights abuses in the camps in previous years continued to enjoy impunity.". However, in its 2006 update of the annual report, the references to a lack of basic freedoms had been removed (though not the references to human rights abusers). In 2005 the US Committee for Refugees and Immigrants stated: "The Algerian Government allowed the rebel group, Polisario, to confine nearly a hundred thousand refugees from the disputed Western Sahara to four camps in desolate areas outside Tindouf military zone near the Moroccan border 'for political and military, rather than humanitarian, reasons,' according to one observer. According to Amnesty International, "This group of refugees does not enjoy the right to freedom of movement in Algeria. [...] Those refugees who manage to leave the refugee camps without being authorized to do so are often arrested by the Algerian military and returned to the Polisario authorities, with whom they cooperate closely on matters of security.' Polisario checkpoints surrounded the camps, the Algerian military guarded entry into Tindouf, and police operated checkpoints throughout the country." The main concern of most human rights organizations seems to be the refugees' problems of basic subsistence, living on a meager diet of foreign aid. Human Rights Watch carried out an extensive research mission in the region in 1995, visiting Morocco, Western Sahara and the Tindouf refugees. Its conclusion on the human rights situation for the Sahrawis in Tindouf was that "we found conditions to be satisfactory, taking into account the difficulties posed by the climate and desolate location". In 1997 and 1999 respectively, the Canadian Lawyers Association for International Human Rights performed two investigative missions to Western Sahara, the first focused on the Tindouf refugee camps, and the second on conditions in Moroccan-controlled Western Sahara. The conclusion of the Tindouf mission states that "the refugee camps in Algeria are highly organized and provide more than just the most basic needs to their inhabitants" and that "It appears that a significant effort is being made to ensure that the population is well-educated and that they participate in the governance of the camps." Cuba students programme Polisario is regularly accused by Morocco of deporting