What's behind 'rape culture' on campus?

"Consent is the heart of sexual assault. It’s not moot. It’s always an issue," Dunn said. "The reality is, when it happens, people kind of shrug, say, 'Well, you were drunk.' It didn’t matter that you never drank before. Didn’t matter that everyone else gave you that alcohol. Clearly, somehow, you’re supposed to still be able to protect yourself and know better.”

Dunn’s story, told by correspondent Sarah Hoye in tonight’s program, isn’t unique. In a given year, 5.2 percent of college women are raped, according to a 2007 study of 2,000 female students by the Medical University of South Carolina. Projected over a now-average five-year college career, more than one in four women will be raped by the time she graduates.

Among the few who choose to report their assaults, like Dunn, many of them are blamed. Often, that is because alcohol is involved.

Seventy-two percent of victims of college rape were too intoxicated to consent, according to a 2004 report in the Journal of Studies on Alcohol. Among women who had consumed 10 or more drinks in a sitting since starting college, 59 percent were sexually victimized by the end of their first semester, according to a 2011 University of Buffalo study.

But correlation does not necessarily mean causation.

"That’s not to say that alcohol or drinking causes rape. It doesn’t," said Lynn Phillips, a psychologist and professor at the University of Massachusetts who studies students and sexuality. "Somebody choosing to take advantage of somebody who’s drunk is what’s causing rape. Right? They choose to do that. They could choose not to."

Predators may use alcohol as a tool to incapacitate women or render them more vulnerable to attack, but it is one of many tools and methods rapists use, according to pioneering research by clinical psychologist David Lisak. From more than 20 years of studying campus rapists, Lisak has identified some of the characteristics of campus predators. Using alcohol is a common one, he found, but rapists are also adept at identifying likely victims, using sophisticated strategies to 'groom' them, and using power, control, manipulation, threats and physical force. When it comes to the research, the arguments made by the victim-blamers do not stack up.

Phillips has interviewed hundreds of college students about their experiences with sexual assault. One of the problems, she argues, is that society doesn't teach young men about consent.

“We don’t do enough to teach young men that you can’t have sex with somebody who’s incapacitated,” Phillips told America Tonight. Instead, the message that both men and women get fuels assault. “Everywhere in the culture there’s this sort of eroticizing and naturalizing of sexuality mixed with physical force,” she said. “It really focuses on male entitlement to sexuality. It frames masculinity as being about power and aggression and about getting everything you can, sexually.”

Others call that rape culture, an environment in which violence against women is normalized and excused in the media and popular culture. It is what many feminists and activists say fuels assault, and victim-blaming.

It is the culture that Dunn, now a third-year law student at the University of Maryland, is working to change. She is a survivor who has become an activist, speaking out in public, specializing in Title IX issues, and interning at the Department of Justice’s Office of Victimization.

“I actually do think the culture will change once you acknowledge that it doesn’t matter what you wear, it doesn’t matter what you drink, it doesn’t matter where you go out,” Dunn said. “You should be safe where ever you are and have that right to yourself to make your choices.”