"This plaster is mixed with sulfur. Potassium nitrate, sulfur, and charcoal—this is the oldest formula for making gunpowder, yet it is extremely practical."
"Readymade gunpowder certainly wouldn't pass airport security, but if you separate the three components and combine them once you're on the plane, it's more than enough to make gunpowder."
"All you have to do is go to the restroom, crush the plaster, wrap it up, and ignite it with a fuse, and it will cause a certain amount of damage."
Chapter 273