MinnPost photo by Bill Kelley Sister Brigid McDonald on Pope Benedict XVI: "I can't even begin to imagine what he could say or do that would change religious women's beliefs." As a rule, Sister Brigid McDonald tries not to pay too much attention to papal pronouncements, but Pope Benedict XVI’s recent decision to rein in American nuns, found by a Vatican investigation to harbor “radical feminist themes incompatible with the Catholic faith,” caught her attention.Last month, Benedict announced that a four-year Vatican investigation had found the Leadership Conference of Women Religious has challenged church teaching on homosexuality, the ordination...