New research suggests that gang rape is a wider problem across Asia - with some of the highest recorded levels of violence against women in the world to be found within the Asia-Pacific region. Despite years of attention and millions spent on preventing it, there has been little or no measured decrease in its occurrence. Researchers have compiled cross-country data from men - those who admit to using violence against women, and those who do not. One in four said they had raped a woman or girl, while one in 25 admitted to taking part in gang rape. The reasons men say they rape are complex. The majority feel sexually entitled, but in Cambodia which has one of the highest rates of gang rape, anger, punishment and fun featured more prominently as reasons than in other countries. They now lead social programs, research projects and speak out in the media.