Major Hasan's motivation

Barry Rubin suggests that, to understand Major Hasan's thought process and motivation prior to the Fort Hood massacre, the best place to start is the slide show he presented as part of his 'grand round,' or lecture, when he was a medical resident at Walter Reed Hospital.

The grand round is supposed to be on a medical topic. Instead, Hasan instead lectured on the morality (or lack thereof) of serving as a Muslim in the U.S. military when it is fighting other Muslims in countries like Iraq and Afghanistan.

Rubin's analysis, which contains the link to the slide show, is sobering and should be required reading for anyone trying to understand Hasan.