preparing to shift more than $200 million from other HHS accounts. Gallery See also Asylum seeker Border barrier Airspace Air sovereignty Illegal entry United States Border Patrol Border guard Illegal immigration Immigration law Maritime boundary Freedom of movement Refugees Notes References Further reading Susan Harbage Page & Inéz Valdez (17 April 2011). "Residues of Border Control", Southern Spaces Philippe Legrain (2007). Immigrants: Your Country Needs Them, Little Brown, Aristide Zolberg (2006). A Nation by Design: Immigration Policy in the Fashioning of America, Harvard University Press, Philippe Legrain (2007). Immigrants: Your Country Needs Them, Little Brown, Ruben Rumbaut & Walter Ewing (Spring 2007). "The Myth of Immigrant Criminality and the Paradox of Assimilation: Incarceration Rates among Native and Foreign-Born Men", The Immigration Policy Center. Bryan Balin (2008). State Immigration Legislation and Immigrant Flows: An Analysis The Johns Hopkins University Douglas S. Massey (September 2005). "Beyond the Border Buildup: Towards a New Approach to Mexico-U.S. Migration", Immigration Policy Center, the American Immigration Law Foundation IPC Special Report (November 2005). "Economic Growth & Immigration: Bridging the Demographic Divide", Immigration Policy Center, the American Immigration Law Foundation American Immigration Council (April 2014). "Immigrant Women in the United States: A Demographic Portrait" Jill Esbenshade (Summer 2007). "Division and Dislocation: Regulating Immigration through Local Housing Ordinances". American Immigration Council Jeffrey S. Passel & Roberto Suro (September 2005). "Rise, Peak and Decline: Trends in U.S. Immigration". Pew Hispanic Center Jeffrey S. Passel (March 2005). "Estimates of the Size and Characteristics of the Undocumented Population". Pew Hispanic Center Jeffrey S. Passel (March 2007). "Growing Share of Immigrants Choosing Naturalization". Pew Hispanic Center UNCTAD's Classification of Non-Tariff Measures (2012) report External links ITC's Market Access Map, an online database of customs tariffs and market requirements. Border control Control Export and import control International relations Control International law Travel Visas