Immigration: Visa Security Policies. Congressional Research Service, Library of Congress. Ruth Ellen Wasem. June 9, 2014.
At its core, visa integrity protects the United States from foreign nationals who threaten public health and safety or national security, while at the same time welcomes legitimate foreign nationals who bolster the U.S. economy and foster international exchanges. Balancing these dual, and some would say competing, missions is an ongoing challenge. The policy questions center on the efficacy of the process, the security features of the policies, and whether the law needs to be revised to improve efficiency and strengthen security.
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