The Department of Homeland Security released a study Tuesday that sheds new light on the connection between the U.S. immigration system and so-called homegrown terrorism.
Of the 549 people convicted of international terrorism-related charges between Sept. 11, 2001 and the end of last year, 402 — 73 percent — were foreign-born, according to the DHS report. Of those, 148 had become naturalized U.S. citizens before committing terrorism offenses.
DHS Secretary Kirstjen Nielsen said the findings suggest the U.S. needs to improve its immigration vetting process to include screening certain immigrants after they arrive.
“I think what we take directly away from the report is we need to continue to enhance our screening and vetting,” she told “CBS This Morning” co-host John Dickerson on Tuesday.
“But it also tells us we need to continually vet those who are here. We have examples unfortunately over the last decades of terrorist attacks from legal permanent residents and others who were naturalized.”
The DHS study follows a spate of recent terror-related offenses allegedly committed by foreign-born people who had immigrated to the U.S. through legal channels.
The suspects in two of the incidents — a deadly truck rampage in October and an attempted suicide bombing in December — had arrived through the diversity visa lottery and on a family preference visa, respectively.
Last month, a naturalized U.S. citizen from Pakistan named Zoobia Shahnaz was indicted for allegedly laundering more than $85,000 through Bitcoin and other cryptocurrencies to fund Islamic State group fighters overseas.
Shahnaz came to the U.S. on an F43 family-preference visa, which is granted to the children of siblings of U.S. citizens, according to DHS.
Trump administration officials have pointed to the incidents as evidence of public safety and national security vulnerabilities in the U.S. immigration system. Shortly after taking office, Nielsen backed Attorney General Jeff Sessions — the administration’s leading immigration hawk — in calling for tighter limits on extended-family migration and ending the green card lottery.
The DHS report released Tuesday comes out of Section 11 of President Donald Trump’s March executive order on preventing terrorist entry to the U.S. The order requires homeland security officials to compile data on terrorism offenses and other public safety threats committed by foreign nationals.
In addition to the terror-related convictions, roughly 1,700 aliens who posed “national security concerns” have been deported since September 2001, according to the Section 11 report.
The combined number of convictions and deportations are evidence a merit-based system is needed to ensure the immigration of people who can assimilate and thrive in the U.S., a senior administration official said Tuesday.
“That should be what our ideal is, not bringing in individuals who will eventually take up arms against the United States,” the senior administration official told reporters in a background briefing.
The Section 11 report does not include a breakdown of terrorism convictions by visa category. Administration officials said that information would be released publicly in future reports.
A version of this article appeared on The Daily Caller News Foundation website.
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