Editor's note: This report includes graphic and disturbing descriptions of sexual assault.
In the sex education class for adults with intellectual disabilities, the material is not watered down. The dozen women and men in a large room full of windows and light in Casco, Maine, take on complex issues, such as how to break up or how you know you're in an abusive relationship. And the most difficult of those issues is sexual assault.
Katy Park, the teacher, begins the class with a phrase they've memorized: "My body is my own," Park starts as the rest join in, "and I get to decide what is right for me."
People with intellectual disabilities are sexually assaulted at a rate more than seven times that for people without disabilities. NPR asked the U.S. Department of Justice to use data it had collected, but had not published, to calculate that rate.
At a moment when Americans are talking about sexual assault and sexual harassment, a yearlong NPR investigation finds that people with intellectual disabilities are one of the most at-risk groups in America.
"This is really an epidemic and we're not talking about it," says Park, a social worker who runs arts and wellness programs for Momentum, an agency based in Maine that provides activities in the community and support services for adults with intellectual disabilities. Those high rates of abuse — which have been an open secret among people with intellectual disabilities, their families and people who work with them — are why Park started this class about healthy relationships and healthy sexuality.
Because one of the best ways to stop sexual assault is to give people with intellectual disabilities the ability to identify abuse and to know how to develop the healthy relationships they want.