Source: The Christian Science Monitor Kristen Chick Correspondent | @kristenchick They are deciding whether to return to villages once held by Islamic State – a decision that could affect the stability and religious diversity of the Middle East.  JANUARY 14, 2017 QARAQOSH, IRAQ—It is Raghad Abada’s first glimpse of her hometown since August 2014, when she and her husband gathered their children, grabbed a few documents, and fled for their lives ahead of the Islamic State (IS) invasion. More than two years later, she stares out the window of a white Hyundai Tucson as her husband’s brother, Nawar Boulis Karomi,…