Homeland Security:
Overstay Tracking Is a Key Component of a Layered Defense
GAO-04-170T: Published: Oct 16, 2003. Publicly Released: Oct 16, 2003.
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Each year, millions of visitors, foreign students, and immigrants come to the United States. Visitors may enter on a legal temporary basis--that is, with an authorized period of admission that expires on a specific date--either (1) with temporary visas (generally for tourism,business,or work) or, in some cases (2) as tourists or business visitors who are allowed to enter without visas. (The latter group includes Canadians and qualified visitors from 27 countries who enter under the visa waiver program.) The majority of visitors who are tracked depart on time, but others overstay. Four of the 9/11 hijackers who entered the United States with legal visas overstayed their authorized periods of admission. This has heightened attention to issues such as (1) the extent of overstaying, (2) weaknesses in our current overstay tracking system, and (3) how the tracking system weaknesses and the level of overstaying might affect domestic security.
Significant numbers of foreign visitors overstay their authorized periods of admission. The Department of Homeland Security estimates the resident overstay population at 2.3 million as of January 2000. Because the starting point for this estimate is the 2000 census, it does not cover short-term overstays who have not established residence here. It also omits an unknown number of potential long-term overstays from Mexico and Canada. Because of unresolved weaknesses in DHS's current system for tracking arrivals and departures (e.g.,noncollection of some departure forms and inability to match other departure forms to arrivals), there is no accurate list of overstays. Two new tracking initiatives are intended to address these weaknesses. NSEERS, the National Security Entry and Exit Registration System, does not cover most visitors. US-VISIT, the U.S. Visitor and Immigrant Status Indicator Technology, a more comprehensive,automated program, is being phased in. While its design and implementation face a number of challenges, evaluating US-VISIT against the weaknesses GAO identifies here would increase its potential for success. The current tracking system's weaknesses limit control options and make it difficult to monitor potential terrorists who enter the country legally. Like other illegal immigrants, overstays obtain jobs with fraudulent identity documents, including jobs at critical infrastructure locations, such as airports. Thus, tracking issues can affect domestic security and are one component of a layered national defense. Improving the tracking system could work with intelligence, investigation, information-sharing, and other factors to help counter threats from foreign terrorists.
Jan 19, 2021
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DHS Annual Assessment:
Most Acquisition Programs Are Meeting Goals but Data Provided to Congress Lacks Context Needed For Effective OversightGAO-21-175: Published: Jan 19, 2021. Publicly Released: Jan 19, 2021.
Dec 16, 2020
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Coast Guard:
Actions Needed to Improve National Vessel Documentation Center OperationsGAO-21-100: Published: Dec 16, 2020. Publicly Released: Dec 16, 2020.
Nov 23, 2020
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Southwest Border:
Information on Federal Agencies' Process for Acquiring Private Land for BarriersGAO-21-114: Published: Nov 17, 2020. Publicly Released: Nov 23, 2020.
Nov 12, 2020
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Coast Guard Acquisitions:
Opportunities Exist to Reduce Risk for the Offshore Patrol Cutter ProgramGAO-21-9: Published: Oct 28, 2020. Publicly Released: Nov 12, 2020.
Oct 29, 2020
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TSA Acquisitions:
TSA Needs to Establish Metrics and Evaluate Third Party Testing Outcomes for Screening TechnologiesGAO-21-50: Published: Oct 29, 2020. Publicly Released: Oct 29, 2020.
Oct 20, 2020
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Homeland Security Acquisitions:
DHS Has Opportunities to Improve Its Component Acquisition OversightGAO-21-77: Published: Oct 20, 2020. Publicly Released: Oct 20, 2020.
Sep 30, 2020
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Disaster Assistance:
Additional Actions Needed to Strengthen FEMA's Individuals and Households ProgramGAO-20-503: Published: Sep 30, 2020. Publicly Released: Sep 30, 2020. -
Supplemental Material for GAO-20-503:
FEMA Individuals and Households Program Applicant Data 2016 – 2018GAO-20-675SP: Published: Sep 30, 2020. Publicly Released: Sep 30, 2020. -
Supplemental Material for GAO-20-503:
Select Disaster Profiles for FEMA's Individuals and Households Program 2016-2018GAO-20-674SP: Published: Sep 30, 2020. Publicly Released: Sep 30, 2020.
Sep 29, 2020
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Chemical Security:
DHS Could Use Available Data to Better Plan Outreach to Facilities Excluded from Anti-Terrorism StandardsGAO-20-722: Published: Sep 29, 2020. Publicly Released: Sep 29, 2020.
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