Divorce for "any cause"

We occasionally have to deal with this topic in personnel decisions at JBU, so I've been looking for a way to understand these questions. The explanation in this article that Jesus was decrying the then-accepted practice of "any cause" divorce, and not necessarily divorce for any cause, was helpful in confirming what had always seemed to me the appropriate grounds for divorce as adultery, emotional and physical neglect, and abandonment and abuse.

http://www.christianitytoday.com/ct/2007/october/20.26.html