Benny Briolli, a transgender councilwoman and candidate for Rio de Janeiro state deputy, attends a march in defence of religious freedom in Rio de Janeiro, Brazil September 9, 2022. REUTERS/Pilar Olivares BELO HORIZONTE, Brazil, Sept 21 (Reuters) - At her campaign headquarters, Brazilian congressional hopeful Duda Salabert gently lays out the newspaper clippings sent to her in August. Her photo is on many of the pages, and Nazi swastikas and profanities have been scribbled over them. "You are a danger to society," reads one. "You need to be isolated as soon as possible, preferably in a concentration camp." Salabert, 41,...