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- [Narrator] Domino theory[br]has very little to do

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with dominoes, and even[br]less to do with pizza.

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Instead, it deals with[br]the spread of communism

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throughout the world.

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It was said that if one[br]nation adopted communism,

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so too would nearby nations.

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One after the other, after the other.

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While he never trademarked[br]the term domino theory,

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President Dwight D. Eisenhower[br]was the first person

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to use the analogy during[br]a 1954 news conference.

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In a time when communism[br]was seen in much of the West

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as an immense evil,

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the idea of country after country falling

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to the communists was[br]terrifying to many Americans.

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Most fear centered around[br]Southeast Asian countries,

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like Vietnam, and domino theory[br]provided a convenient reason

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for the United States to get[br]involved in police actions

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in the region to prevent[br]the spread of communism.

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Although, maybe it'd be better

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if we solved our problems over a real game

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of dominoes, instead.

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(bird squawks)

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- Getting elected president

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is an expensive business.

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Campaign costs add up.

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There are advertisements[br]to make, travel expenses,

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convention costs, even bumper stickers,

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but where does all this money come from?