[Mason and Goodspeed are defusing a poison gas rocket]

What exactly does this stuff do?

If the rocket renders it aerosol, it could take out an entire city of people.

Really? And what happens if you drop one?

Happily, it'd just wipe out you and me.

How?

It's a cholinesterase inhibitor. Stops the brain from sending nerve messages down the spinal cord within thirty seconds. Any epidermal exposure or inhalation and you'll know. A twinge at the small of your back as the poison seizes your nervous system...[Mason has lifted the chem round to look at it] Do NOT move that! Your muscles freeze, you can't breathe, you spasm so hard you break your own back and spit your guts out. But that's after your skin melts off.

[wide-eyed]

My God.

Oh, I think we'd like God on our side at the moment, don't you?