Many states run animal gas chambers  Virginia It's so revolting that most states do not allow viewing of animals being gassed in the state run carbon monoxide gas chambers. Most people who view such a 'euthanasia' cannot forget the agony of animals going to an unwilling end. "Gassing is 'like a dark, dirty secret that no one wants exposed,' said Jeanne Bridgforth, an animal welfare activist who launched a campaign last month to rid Virginia of its 26 gas chambers. Even though killings are performed at taxpayer expense, the public pounds are 'doing something they don't want anyone else to see,' she said. " Only three states have banned carbon monoxide gassing: California, Maryland and Tennessee. "Most animal welfare groups and the American Veterinary Medical Association recommend intravenous injection of sodium pentobarbital for the euthanasia of companion animals..." Daily Press Jun 17 2002 3:56AM ET from  [Moreover - Animal news]