More than 30 years ago, Ivanir dos Santos began combating racial discrimination and promoting rights of members of minority groups; he has never faltered in that mission. Today a priest of the much-discriminated-against Candomblé religion, Mr. dos Santos’ most visible achievement is the “Walk in Defense of Religious Freedom” in Rio de Janeiro. The walk has become “an annual event that draws some 50,000 participants from diverse religious backgrounds, including Candomblé, Muslims, Jews, Christians, Buddhists, Spiritualists, and atheists.”