(AP Photo/Alessandra Tarantino) Sister Carmen Sammut, right, leader of the International Union of Superiors General, and Donatella Zoia, Superior General of the Sisters of the Most Precious Blood, arrive for a press conference at the Vatican, Thursday, May 2, 2019. Sammut says religious sisters are increasingly speaking out about sexual and other forms of abuse by clergy and says their superiors must be better trained to understand the problem and respond.