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  It passes a law defining who could become a citizen if a person was not born here: Citizenship was possible only for someone who was "a free white person"
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  some 25 million immigrants arrived.
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  It said that no Chinese laborer could enter the United States for 10 years.
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  Congress sets up quotas favoring immigrants from northwestern Europe.
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  Immigration from any country is limited to 2% of its total numbers in the 1890 census.
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  The immigration reform act throws out the national origins system; now preference is given first to reunifying families and second to people whose skills help the United States.
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  penalizes employers for knowingly hiring undocumented immigrants, but it gives amnesty to some undocumented immigrants, allowing them a path to eventually apply for citizenship.
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  which said that no country could account for more than 7% of total immigrants.
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  A new law expands the U.S. Border Patrol and stiffens penalties for false papers.
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  President George W. busch commited himself to backing a bill to address all immigration issues.