A question about "The Vagina Monologues" and Notre Dame

I lead a pretty insular life (as befits one raised in Kentucky, less than an hour's drive from the Abbey of Our Lady of Gethsemane).  Would someone please tell me what it is about "The Vagina Monologues" (I know nothing about them) that is problematic from the perspective of the leadership of the University of Notre Dame?  Rick?  Someone?  Anyone?  Thanks in advance.  --Michael