Last week, a group of experts gave a presentation to U.S. Army Europe leaders about sexual assault. One of those experts, pychologist David Lisak, uses a video re-enactment of an interview done with a college man named "Frank" to show how seemingly normal men plan to prey on women.

He and his fraternity brothers, Frank says, planned parties to get young women extremely drunk and then rape them, although Frank never used that word, or, in fact, viewed himself as a rapist.

Frank said he and his fraternity brothers would specifically invite freshmen because they didn’t know the ropes, were nervous, thrilled to be invited and couldn’t handle their alcohol. "It’s like they were easy prey," Frank says.

The men would make a sweet punch with a high alcohol content — "And these girls wouldn’t know what hit them," Frank says. "They’d all be just guzzling the stuff because it was just juice, right?"

The interviewer asks if the men counted on the women to be naïve.

"Yeah, in a way I guess we did," Frank says. "The real young and naïve ones were the easiest. They’d be plastered in minutes and they’d be our real targets."

The interviewer asks what Frank means by targets.

"By then each girl would kind of be staked out, meaning one of the guys would be working on her, getting her drinks, keeping the juices flowing, so to speak," Frank says. "And you had to kind of pick your moment to make your move, you know, you basically had to have an instinct for it."