The organization planning to build an Islamic community center near the World Trade Center said the imam who has been the public face of the project, Imam Feisal Abdul Rauf, will be playing a reduced role in the facility. The nonprofit group Park51 announced Friday that it had named a new imam to help lead religious programing so that Rauf could focus on other initiatives. Rauf announced late this fall that he would be starting a global movement that would fight extremism and promote better relations between people of different faiths and cultures. He is set to start a national...