In the case of Abu Ghraib, this was a real question. Were the people who committed the abuse at Abu Ghraib just bad people, bad apples? There's this wonderful book written by a very prominent psychologist named Philip Zimbardo called The Lucifer Effect. He made a very good case that it's not bad apples who generally are responsible. There are bad apples out there, but almost all war crimes, abuse and atrocities and so forth, are a product of the environment of what he called the "bad barrel," of a situation that almost forces people to act violently and cruelly toward others.
Welcome to the UCDP GED (Uppsala Conflict Data Program - Georeferenced Event Dataset) page. The GED is the product of two and a half years of work at the Department of Peace and Conflict Research, Uppsala University. The UCDP GED contains conflict data disaggregated spatially and temporally down to the level of the individual incidents of violence. For more details please see the About link above
This article describes several of the more successful critical peace education methodologies and perspectives that I was able to bring to my classroom in a juvenile detention home. For example, reflective writing and community analysis of nonviolent peace movements formed the core of my curriculum, as did critical analysis of the social processes of stereotyping and dehumanization. As a result, numerous students grew in their ability to write, express empathy with others, identify bias and articulate critical analysis of their schools, among other political systems. This analysis will contribute to the growing body of work on the practice of critical peace education.