When the Rev. Martin Luther King addressed more than 3,000 mourners at the funeral for the victims of the Birmingham church bombing, he implored them not to lose hope despite their sorrow. "This tragic day may cause the white side to come to terms with its conscience," he said. "In spite of the darkness of this hour, we must not become bitter. ... We must not lose faith in our white brothers. Life is hard. At times as hard as crucible steel, but, today, you do not walk alone."