Campbell Live TV Show, March 19, 2012. This Channel 3 News coverage looks at the “enriched” cage system for egg-laying hens, referred to as “colony” cages. Animal behaviorist Mark Vette expresses his opinion of these cages. 

http://www.youtube.com/watch?v=FVKZD85kC7s or http://arzone.ning.com/video/campbell-live-march-19th-colony-cages-hens-being-hurt