Christianity and Islam in the Middle East may seem inherently at odds, but a Catholic bishop Wednesday morning dispelled this notion and pleaded for peace and unity in a region desperately lacking both. “Peace is possible, but it takes hard work,” said Bishop Gregory Mansour. “It takes a little bit of defiance, and it takes young people like you to get old people like me to move forward.” Mansour and the organization he leads, Christian Arab and Middle East Churches Together,