KGO ABC World News With Diane Sawyer March 9, 2012 01:41:00
Two at bpi, says that's because the protein comes mostly from connective tissue, not muscle meat. >> it will fill you up. but it's not going to do you any good. >> reporter: today, we were flooded with questions from concerned viewers. >> which grocery stores near me do or don't sell ground beef that contains ammonia-treated pink slime? >> how can consumers find out which retailers do use this pink slime? >> reporter: so, we went out abc news producers to stores across the country to the meat section, to see if it's in the ground beef they sell. most couldn't tell us for sure. >> there is no w...