My region's food supply. The prospect of 3 million Oregonians or Californians suddenly on Washington's doorstep will need to be fed. Sysco, Food Services of America and the other food suppliers will need to step up shipments into the area, pronto, and develop their contingency plan should our supply lines (I-5, I-90, US2, and a few rail lines) be cut off. I would also expect local and national authorities to step up and begin shelter operations, and FEMA (there's that word again) to begin resettlement of the displaced. And why not, a sudden influx of people is a disaster that needs treating no matter where or what origin. I doubt that any refugees will seek to camp out in my backyard. I might open my house to some friends from down south if they are among the refugees - life with another couple and their kids isn't optimal, but shelter for them is better than the alternatives.