Schneier on Charcoal, Sulphur, Saltpetre

Und ich lache immer noch:

Gunpowder Is Okay to Bring on an Airplane

Putting it in a clear plastic baggie magically makes it safe:
Mind you, I had packed the stuff safely. It was in three separate jars: one of charcoal, one of sulphur, and one of saltpetre (potassium nitrate). Each jar was labeled: Charcoal, Sulphur, Saltpetre. I had also thoroughly wet down each powder with tap water. No ignition was possible. As a good citizen, I had packed the resulting…

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