Credit: AP Photo/Beef Products Inc.
In this undated image released by Beef Products Inc., boneless lean beef trimmings are shown before packaging. The debate over "pink slime" in chopped beef is hitting critical mass. The term, adopted by opponents of "lean finely textured beef," describes the processed trimmings cleansed with ammonia and commonly mixed into ground meat. Federal regulators say it meets standards for food safety. Critics liken it to pet food - and their battle has suddenly gone viral amid new media attention and a snowballing online petition.