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It starts out as a typical, average day in Portland, OR. That situation changes mid-morning when an air siren goes off, the citizenry subsequently informed that enemy aircraft are currently inbound over the Aleutians potentially to drop an atomic bomb on Portland, one of one hundred nineteen identified critical American targets. This notification gives them two and a half hours to implement the protocols put in place and well-known and practiced by them in the case of an atomic bomb attack.
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