[WestCoastGal]

Well then I would assume it's very easy to disperse in a large crowd. Easy to make. Are the ingredients easy to get without raising flags?

Could it be dispersed from a water truck or crop duster or model airplane?

From what I've learned about chemicals it's probably easier to disperse them inside without the wind factor. I never realized I would learn all these things in my life.

They are all scumbags, I want to be on the record for that!!

[null and void]

For phosgene, any hardware or auto parts store.

Phosphine could be made using some of the ingredients any meth lab would have. They don't seem to have much trouble getting them.

I suppose any handy pressure vessel would work. Propane tank, that sort of thing.

Yeah. Inside/building air intakes would give higher casualty rates. Too far to fresh air. Lucky me. I get to be at a major Biotech trade show 6th thru 9th...