TY - DATA AU - Smith,Hillel R. ED - Library of Congress. TI - An overview of U.S. immigration laws regulating the admission and exclusion of aliens at the border T2 - LSB PY - 2018///- CY - [Washington, D.C.] PB - Congressional Research Service KW - Emigration and immigration law KW - United States KW - Border security KW - Illegal aliens KW - Government policy KW - Emigration and immigration N1 - The CRS report home page provides access to all versions published since 2018 in accordance with P.L. 115-141; GPO Cataloging Record Distribution Program (CRDP) UR - https://purl.fdlp.gov/GPO/gpo131459 ER -