Yahoo! News Thursday March 4 1:57 AM ET U.S. Condemned For Sex Abuse Of Women Prisoners By Astrid Zweynert LONDON (Reuters) - Women prisoners in the United States are subjected to serious sexual abuse, including rape and being sold as ``sex slaves'' to male inmates, Amnesty International said Thursday. In a wide-ranging report the human rights organization said male guards often supervised naked women prisoners and searched them in ways involving contact with their breasts and genitalia. The authorities' response to complaints was inadequate, leaving the victims with ``no voice,'' and often the perpetrators were not brought to justice, the report said. ``Women in prison have been sentenced to be deprived of their liberty, not to be subjected to sexual abuse,'' Fiona Weir, Amnesty's UK Campaigns director, said at a news conference. ``The U.S. is a country that prides itself on its constitution and often draws attention to human rights abuses in other countries. What we want to achieve is a change in policy.'' The underlying cause of the problem is the large number of male guards in American women's prisons and their unrestricted access to women's cells, Amnesty said. While many Western nations follow United Nations standards that female prisoners should only be closely supervised by women, male guards in U.S. prisons may watch over a woman even when she is dressing, showering or using the toilet. A survey of 40 U.S. prisons found in 1997 that 41 percent of guards in women's prisons were male, with larger proportions in Kansas, California and Idaho. ``The U.S. must get in step with international standards and stop men guarding women prisoners,'' Weir said. Many of the violations described in the report are illegal under U.S. law. But practices such body searches by male guards are legitimate and leave women open to sexual abuse, like touching their breasts and genital areas. Often female prisoners find it difficult to stop unlawful conduct by guards or to have a perpetrator brought to justice, Amnesty said, citing the case of a prisoner named Robin Lucas. Lucas filed a lawsuit against U.S. authorities in 1996, saying she was raped, sodomized and made into a sex slave by guards who ``sold'' access to her cell to male inmates in a federal prison in Dublin, California. The case, filed with two fellow female prisoners, was settled out of court and the U.S. Bureau of Prisons agreed to institute significant reforms. It paid the women $500,000 to partially compensate them for their ordeal. ``The case showed a typical pattern -- that no one gets prosecuted,'' said Silvia Casale, an independent prisons expert.