Inhumane depopulation of factory farmed animals

[Catherine]

I think it is only the USA. I have never heard of anything like this anywhere else. I have never heard of anything like this ever. There have been cases of animals dying when ventilation is poor or fails. This is deliberately using lack of ventilation to kill animal. It would be the same if a pound put down its animals by leaving them in hot cars. One death like that is shocking. When thousands of animals are involved it seems to be harder to get a reaction. How could the American Veterinary Medical Association hesitate to condemn this. They have been allowing it so far. Why haven't they reacted?