The #MeToo movement has inspired a sister movement called #USToo, designed to expose and eliminate sexual harassment in the sciences. A sweeping new report from the National Academies of Sciences, Engineering, and Medicine looks at the extent to which women in these fields are harassed on campuses, research labs, medical centers and other academic environments. The chilling impact on the recruitment, retention and advancement of women does more than harm individuals – it also holds back critical progress in science, health, and medicine. A look at policies and practices that can curb abuse.