The idea that the deaths which occurred under Pol Pot's government should be considered genocide was first put forward by the Vietnamese government in 1979 after the revelations of the killings committed at Tuol Sleng prison. The Vietnamese-backed PRK administration swiftly opened the prison to visitors as the "Genocide Museum". Short argued that while Pol Pot's administration was clearly responsible for crimes against humanity, it was misleading to accuse it of genocide because it never sought to eradicate an entire population.