Iranian schoolbooks between 2000 and 2010, and was thus appointed to be a member of the Scientific Advisory Panel for the study from The Council For Religious Institutions in the Holy Land. He criticized the study and its results for the following: selection of the Study Material: "highly demonizing pieces were not included, under the pretext that they were not explicit enough", "explicit denial…was not included too" categorization methods: "real cases of ignoring the 'other' deliberately without degrading him slipped away from scrutiny", false positive descriptions the quality and depth of the analysis: "There is no attempt to study the quotes more deeply and draw conclusions", "the report considers Jihad and martyrdom as values, which is acceptable academically, but it fails to evaluate their impact on the issues of war and peace". Groiss concluded that "the main question, namely, to what extent is this or that party engaged in actual education for peace, if at all, has not been answered by the report itself." All in all there seems to be broad agreement that there is continual improvement in the textbooks used by UNRWA—but very strong disagreement about whether the improvement is sufficient. In response to a critical report written in 2009 by former UNRWA general counsel James G. Lindsay, fellow researcher for Washington Institute for Near East Policy John Ging, head of UNRWA Gaza, said: "As for our schools, we use textbooks of the Palestinian Authority. Are they perfect? No, they're not. I can't defend the indefensible." UNRWA has taken many steps since the year 2000 to supplement the PA curriculum with concepts of human rights, nonviolent conflict resolution, and tolerance. According to the UNRWA website: We have been delivering human rights education in our schools since 2000 to promote non-violence, healthy communication skills, peaceful conflict resolution, human rights, tolerance, and good citizenship. In May 2012, the Agency endorsed its new Human Rights, Conflict Resolution and Tolerance (HRCRT) Policy to further strengthen human rights education in UNRWA. This policy builds upon past successes, but also draws from international best practices and paves the way to better integrate human rights education in all our schools. The HRCRT Policy reflects the UNRWA mandate of quality education for Palestine refugees and sets out a common approach among all UNRWA schools for the teaching and learning of human rights, conflict resolution and tolerance. The vision of the policy is to "provide human rights