The Animal Liberation Front (ALF)
The Animal Liberation Front (ALF) is the United States' most active extreme animal rights movement. Composed of anonymous underground cells that oppose any form of animal experimentation and perceived mistreatment, ALF aims to rescue animals from "places of abuse" and to "inflict economic damage to those who profit from the misery and exploitation of animals." ALF cells have claimed responsibility for hundreds of "direct actions," a euphemism for crimes that include freeing animals from their owners and property destruction. The movement originated in England in the late 1960s, with early activities in the United States beginning in 1979. While the movement is less active today than it was in the 1990s and early 2000s, criminal incidents associated with the movement still occur sporadically.