<Li> About 1.3 million illegal immigrants entered the US . </Li> <Tr> <Td> 1982 </Td> <Td> Plyler v. Doe, 457 U.S. 202 (1982) </Td> <Td> The court also stated that illegal immigrants are "within the jurisdiction" of the states in which they reside and, therefore, are under the equal protection laws of the fourteenth amendment, and stated, "We have never suggested that the class of persons who might avail themselves of the equal protection guarantee is less than coextensive with that entitled to due process . To the contrary, we have recognized (457 U.S. 202, 212) that both provisions were fashioned to protect an identical class of persons, and to reach every exercise of state authority ." </Td> </Tr> <Tr> <Td> 1986 </Td> <Td> Immigration Reform and Control Act </Td> <Td> <Ul> <Li> Started sanctions for knowingly hiring illegal aliens . </Li> <Li> Provided amnesty to illegal aliens already in the US . </Li> <Li> Increased border enforcement . </Li> <Li> Made it a crime to hire an illegal immigrant </Li> </Ul> </Td> </Tr> <Ul> <Li> Started sanctions for knowingly hiring illegal aliens . </Li> <Li> Provided amnesty to illegal aliens already in the US . </Li> <Li> Increased border enforcement . </Li> <Li> Made it a crime to hire an illegal immigrant </Li> </Ul>

When did the us start enforcing immigration laws