 Public awareness of common prison rape is a relatively recent development and estimates of its prevalence have varied widely for decades.In 1974, Carl Weiss and David James Friar wrote that 46 million Americans would one day be incarcerated; of that number, they held that 10 million would be raped.A United States Department of Justice report, "Sexual Victimization in Prisons and Jails Reported by Inmates", states that "In 2011–12, an estimated 5.0% of state and federal prison inmates and 3.2% of jail inmates reported experiencing one or more incidents of sexual victimization by another inmate or facility staff in the past 12 months or since admission to the facility, if less than 12 months."