Thanks, I can understand that, but if you're making a 'military grade' toxin wouldn't you want it to work immediately to disable your enemy and stop them doing damage to you?
I had thought that these toxins worked almost immediately, or certainly within minutes, but it appears that they were walking around and visiting places over a number of hours and leaving a trail of toxic dust behind them. Is this how they work? If so it could put an enormous number of people at...