Ed Hawkins wrote and published a book entitled Wellspring, about a foreign attack involving contamination of water on the Continental Divide.

Iran is Persia, and their allies aren't ours.
Thanks to El Felon d'Taco, we have NO allies.

We also have <1/2 the weapons stockpiles we had before the brilliantly planned War on Iran.
The US was never this exposed, depleted, or vulnerable.