Germans and Gas Chambers How can this be true, and if it is what maroon green-lighted it? The optics folks, the optics. VW, BMW and Mercedes tested dirty diesels on monkeys caged in gas chambers Tweet Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Telegram (Opens in new window)Click to print (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Reddit (Opens in new window)