[dinodino]

Utter nonsense. Aum Shinrikyo couldn’t even pull it off in a fricking SUBWAY CAR. You are talking complete fantasy.

[RayChuang88]

I completely disagree. The way Aum Shinrikyo dispensed the Sarin (GB) nerve gas was very primitive and had a very low dispersal rate. I'm sure ISIS is aware of what that religious cult did and figured since Tabun is a relatively light poison gas, by loading the gas in a pressurized container, once the pressure is released the dispersal cloud could be quite large, and anyone breathing in the gas will suffer its effects, much of it quite excruciating as the gas breaks down the neurotransmitter chemicals in the human nervous system.