A hamburger is made from ground beef containing a filler the meat industry calls "lean, finely textured beef" but critics label "pink slime." A growing number of grocery chains, including Kroger, Giant and Safeway, are offering meat without the additive. (Associated Press)

A hamburger is made from ground beef containing a filler the meat industry calls "lean, finely textured beef" but critics label "pink slime." A growing number of grocery chains, including Kroger, Giant and Safeway, are offering meat without the additive. (Associated Press)