What changes could break the cycle of violence on Native American reservations portrayed in last night’s Vanguard’s “Rape on the Reservation"?

In many of the over 300 Native American reservations in the US there exists a silent culture of violence. In “Rape on the Reservation” Mariana van Zeller visited one of these, the Rosebud reservation in South Dakota where sexual violence runs rampant. What could break this cycle of violence? http://current.com/shows/vanguard/ added by: afitzgerald