ferris.
You ought to get your facts right before spouting off. I know of no DC10 ever being lost through smoking. With regards your statement: "the other type, Egyptair? Hundreds lost," I think you are alluding to a Saudia L1011 which caught fire after a hydraulic leak in the rear fuselage, made it on to the ground, but then everyone died on board due to smoke inhalation. Smoking on aircraft was permitted for years and was not considered a safety factor. Then the vocal PC anti-smoking brigade began to work on public opinion. Airlines were happy to oblige with a smoking ban as it meant less maintenance (ie cleaning) of the cabin conditioning systems. Now you have to put up with bad tempered smokers and an ever increasing number of air rage incidents.