How many would die trying to climb a wall to get out of the United State if Yellowstone erupted? The people of California & the whole American East Coast are proud people--do they have to beg for disaster relief when someone without a conscious wants to build a wall to keep out needy men, women, and children? And what if the greatest tragedy like an eruption of the Yellowstone Caldera, our the beginning of a permanent "Ice Age" suddenly happened, where would Americans and even Canadians go?