Last week two young women, Grace Tame and Brittany Higgins, made speeches at the National Press Club about the sexual abuse of minors and an alleged sexual assault in Parl ment House, respectively, and the social changes required to prevent both risks. Both spoke about the need to prevent these abuses and assaults. OHS needs to understand and, in some ways, confront what is meant by preventing harm. The words of Tame and Higgins help with that need.