Reminded me of the Takata airbag recall. From this article: "A propellant made with ammonium nitrate would swell and shrink with temperature changes, and even

Reminded me of the Takata airbag recall. From this article: "A propellant made with ammonium nitrate would swell and shrink with temperature changes, and eventually the tablet would break down into powder. Water and humidity would speed the process. Powder burns more quickly than a tablet, so an air bag whose propellant had crumbled would be likely to deploy too aggressively." http://www.bloomberg.com/news/features/2016-06-02/sixty-million-car-bombs-inside-takata-s-air-bag-crisis http://www.bloomberg.com/news/features/2016-06-02/sixty-mill...