 Over the past few decades, a few countries have moved toward toleration and regulation of the work activities of prostitutes, yet the larger trend has been toward criminalization, often with increased penalties for customers and pimps (see  100 Countries and Their Prostitution Policies).  Feminist campaigns against prostitution and trafficking have mobilized to win approval for abolitionist policies. Essentially, the feminist anti-pornography movement of the 1970s and 1980s has evolved into the feminist anti-trafficking movement of the 21st century. Both movements treat markets in sexually explicit materials and services as a form of violence against women, and claim that tolerating them perpetuates the social subordination of women. Like the anti-pornography movement in the 1980s, the anti-trafficking movement is finding common ground with social conservatives who have religious objections to non-marital sex, and, more recently, with political conservatives who want to keep economic migrants out of their countries.