I have heard quite a bit about this as I am in one of the sorority chapters at SMU.
One thing I would love to reiterate, for the sake of my university and also my friends that either resigned/expelled from LXA or continue to be brothers: This article does not touch every single aspect of the situation. The comments and statements in the article are not definitive of their chapter as a whole. They are all really angry and hurt right now, but they have always been an outstanding chapter here at SMU while I have been here, and well respected among the student population. I really hope that you guys are successful in your rebuilding efforts.
Also more information can be found here, if anyone is interested:
http://www.smudailymustang.com/?p=25826