Contras operated out of camps in the neighboring countries of Honduras to the north and Costa Rica (see Edén Pastora cited below) to the south. As was typical in guerrilla warfare, they were engaged in a campaign of economic sabotage in an attempt to combat the Sandinista government and disrupted shipping by planting underwater mines in Nicaragua's Corinto harbour, an action condemned by the International Court of Justice as illegal. The U.S. also sought to place economic pressure on the Sandinistas, and, as with Cuba, the Reagan administration imposed a full trade embargo. The Contras also carried out a systematic campaign to disrupt the social reform programs of the government. This campaign included attacks on schools, health centers and the majority of the rural population that was sympathetic to the Sandinistas. Widespread murder, rape, and torture were also used as tools to destabilize the government and to "terrorize" the population into collaborating with the Contras. Throughout this campaign, the Contras received military and financial support from the CIA and the Reagan Administration. This campaign has been condemned internationally for its many human rights violations. Contra supporters have often tried to downplay these violations, or countered that the Sandinista government carried out much more. In particular, the Reagan administration engaged in a campaign to alter public opinion on the Contras that has been termed "white propaganda". In 1984, the International Court of Justice judged that the United States Government had been in violation of International law when it supported the Contras. After the U.S. Congress prohibited federal funding of the Contras through the Boland Amendment in 1983, the Reagan administration continued to back the Contras by raising money from foreign allies and covertly selling arms to Iran (then engaged in a war with Iraq), and channelling the proceeds to the Contras (see the Iran–Contra affair). When this scheme was revealed, Reagan admitted that he knew about Iranian "arms for hostages" dealings but professed ignorance about the proceeds funding the Contras; for this, National Security Council aide Lt. Col. Oliver North took much of the blame. Senator John Kerry's 1988 U.S. Senate Committee on Foreign Relations report on links between the Contras and drug imports to the US concluded that "senior U.S. policy makers were not immune to the idea that drug money was a perfect solution to the Contras' funding problems". According to the National Security Archive, Oliver North had been