Last week, British Prime Minister David Cameron announced plans to make it a criminal offense to own or view pornography that simulates rape. It’s already illegal to produce such “extreme” pornography in the United Kingdom; the proposed law will make it illegal to possess it, too. Some American groups, such as the interfaith non-profit Morality in Media, have been fighting for the United States to pass similar legislation for a long time. Morality in Media’s “War on Illegal Pornography” campaign, for example, holds violent porn responsible for a host of social ills, including domestic abuse and increased crime. These activists have an important goal: to protect women from real-life sexual violence.