Mothers-in-Law and Daughters-in-Law

We all know - have perhaps told a few - stories about mothers-in-law and daughters-in-law. It seems the stories are nearly always about relationships filled with conflict and abrasive words or actions. But why is this relationship so difficult? And is it always as bad as popular belief would have us think? Deborah Merrill, a woman's advocate and Sociology professor at one of our nation's top unive...