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The Department of Homeland Security (DHS) manages the Visa Waiver Program, which allows nationals from 36 member countries to apply for admission to the United States as temporary visitors for business or pleasure without a visa.
Since 2003, the Department of Homeland Security's (DHS) Visa Security Program (VSP) has participated in the visa process by reviewing applications at some embassies and consulates, with the intention of preventing individuals who pose a threat from entering the United States.
The Immigration and Nationality Act requires that most visitors and immigrants to the United States obtain a visa. Aliens unable to obtain a visa, and with a compelling humanitarian need, may apply to the Department of Homeland Security (DHS) to be granted humanitarian parole.
Each year, billions of dollars in dual-use items--items that have both commercial and military applications--as well as defense items are exported from the United States. To protect U.S. interests, the U.S. government controls the export of these items. A key function in the U.S.