Chemicals degrade slowly over time. They may be very potent still.
Some chemicals degrade faster than others.
But, each of these weapons had plenty of chemical to be aerosolized in tiny cans for use by a terrorist in a large venue such as the super bowl.
One micro-droplet of some of this stuff is enough to kill nearly immediately.
"Chemicals degrade slowly over time. They may be very potent still."
Does any FReeper know the half-life of Sarin under these circumstances of storage. If this is unclassified knowlege it should be fairly simple to tell if these shells are still lethal or not. (I'm assuming a direct first order decomposition to non-lethal products.)
if they are in binary shells they don't, see post 450
According to a post I read on the TKA blog from NRO online, mustard gas made in the early nineties was still about 95% potent ten years later. That's pretty potent. And even if sarin gas degrades faster, I don't believe any of the moonbat libs like Kerry would want some of the recently found "degraded" s-gas dumped in their bedtime tea.