] Tests on an artillery shell that blew up in Iraq on
] Saturday confirm that it did contain an estimated three
] or four liters of the deadly nerve agent sarin
 . . .
] Another shell filled with mustard gas, possibly also part of an
] improvised explosive device (IED) was discovered on May 2,
] Defense Dept. officials said.

That's nearly a gallon of sarin. A single drop is enough to kill. Looks like the only reason there wasn't a high death toll is because the chemicals inside the shell didn't mix properly.

So, where did this sarin come from? Where was it made, *when* was it made, and where has it been stored? And, most importantly, is this just the tip of the iceberg? Are these just a couple stray shells left around for years, or is there more? And if so, where?

Tests Confirm Sarin in Iraqi Artillery Shell