The Humane Society of the United States (HSUS) reported on 5/6/10 that a federal court in Manhattan ruled in their favor in their federal lawsuit against Hudson Valley Foie Gras (HVFG), the nation's largest foie gras factory farm, located in Hudson Valley, New York. HVFG raises and slaughters ducks, force-feeding them excessive quantities of food through a long pipe down their throats to unnaturally and cruelly expand their livers until diseased for human consumption as a "delicacy." In the process, the birds suffer terribly, and a tremendous quantity of waste is generated, mainly feces and the slaughtered ducks' remains. HVFG was accused and found guilty of polluting local waterways with the waste from their factory farm slaughterhouse.
http://www.humanesociety.org/news/press_releases/2010/05/HVFG_050610.html

Additional litigation against foie gras:

1) There is litigation pending in the New York State Supreme Court by HSUS, Farm Sanctuary, NYS Humane Association, et al., against the NYS Department of Agriculture and Markets asking the court "to compel the state to declare foie gras an adulterated food product" because birds raised for foie gras (artificially fattened livers) are purposely rendered unhealthy and diseased. NYS law prohibits selling diseased animals and animal parts.
http://www.humanesociety.org/news/resources/docket/ny_foiegras_adulteration.html

2) Similar litigation is pending against the United States Department of Agriculture (USDA) to declare foie gras an adulterated food product, in order to prohibit its sale on a national level, due to its being an diseased product.

HSUS, Farm Sanctuary, Animal Legal Defense Fund, et al. vs. USDA
http://www.humanesociety.org/news/resources/docket/in_re__1.html

3) The HSUS et al. v. Empire State Development Corp., NYS Public Authorities Control Board, and Hudson Valley Foie Gras (Foie gras subsidies)
http://www.humanesociety.org/news/resources/docket/the_hsus_et_al_v_empire.html