VIDEO : Brad Pitt, Bill Maher Slam Costco, Speak Up for Caged Hens

Brad Pitt and Bill Maher say Costco contributes to animal cruelty by selling eggs from caged hens. Pitt sent a letter to the chief executive of the big-box chain Thursday asking the company to stop selling eggs produced this way. Pitt's letter to Craig Jelinek says caged birds suffer atrophy of their muscles and bones from years of immobility, adding that the cages have been banned in California and much of Europe. Costco said in June statement that there are "vigorous debates about animal welfare and laying hens."