from shootings, beatings or tear gas. In the first five weeks alone, 35 Palestinians were killed and some 1,200 wounded. Some regarded the Israeli response as encouraging more Palestinians into participating. B'Tselem calculated 179 Israelis killed, while official Israeli statistics place the total at 200 over the same period. 3,100 Israelis, 1,700 of them soldiers, and 1,400 civilians suffered injuries. By 1990 Ktzi'ot Prison in the Negev held approximately one out of every 50 West Bank and Gazan males older than 16 years. Gerald Kaufman remarked: "[F]riends of Israel as well as foes have been shocked and saddened by that country's response to the disturbances." In an article in the London Review of Books, John Mearsheimer and Stephen Walt asserted that IDF soldiers were given truncheons and encouraged to break the bones of Palestinian protesters. The Swedish branch of Save the Children estimated that "23,600 to 29,900 children required medical treatment for their beating injuries in the first two years of the Intifada", one third of whom were children under the age of ten years. Israel adopted a policy of arresting key representatives of Palestinian institutions. After lawyers in Gaza went on strike to protest their inability to visit their detained clients, Israel detained the deputy head of its association without trial for six months. Dr. Zakariya al-Agha, the head of the Gaza Medical Association, was likewise arrested and held for a similar period of detention, as were several women active in Women's Work Committees. During Ramadan, many camps in Gaza were placed under curfew for weeks, impeding residents from buying food, and Al-Shati, Jabalya and Burayj were subjected to saturation bombing by tear gas. During the first year of the Intifada, the total number of casualties in the camps from such bombing totalled 16. Intra-communal violence Between 1988 and 1992, intra-Palestinian violence claimed the lives of nearly 1,000. By June 1990, according to Benny Morris, "[T]he Intifada seemed to have lost direction. A symptom of the PLO's frustration was the great increase in the killing of suspected collaborators." Roughly 18,000 Palestinians, compromised by Israeli intelligence, are said to have given information to the other side. Collaborators were threatened with death or ostracism unless they desisted, and if their collaboration with the Occupying Power continued, were executed by special troops such as the "Black Panthers" and "Red Eagles". An estimated 771 (according to Associated Press) to 942 (according to the