guys, just a post from left field.....i'm not that knowledgeable about aircraft design, but just from common sense and experience, why would you place any substance, gizmo, etc. that could possibly (and, according to Murphy's Law, will at some point) become toxic anywhere near the pilots of a commercial aircraft, who are the only ones on board with a chance of saving the situation. i don't know what the airbus folks are doing with the a350 in the works, but i'd love a look at it.