[Ouderkirk]

The problem here is that Cholrine gas is easily created from basic materials like Draino or (sodium hypochlorite) bleach.

But in general this shows that they are taunting the world to come and smash them.

[jimmyo57]

“But in general this shows that they are taunting the world to come and smash them.”

Too bad no one in the world has the testicular fortitude to come and smash them!

[LivingNet]

I hope Obama sends them a strongly worded letter...

[dynoman]

Yes. It's available in all sorts of cylinders too, I used to work with 2000lb CL2 gas cylinders. All ISIS needs to do is open the valve upwind, it's not any more complicated than that. Our setup was a lot like this;