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She is talking about all the people in the Astrodome.

""So many of the people in the arena here, you know, were underprivileged anyway, so this is working very well for them.""
-Barbara Bush

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They were poor before but now they can share residence with 50,000 other poor people and eat MREs! They may have lost their homes, cars, family heirlooms, pets, and every earthly possession but MREs make life good!