VIDEO: Former FBI agent sounds alarm on visa overstays after US terror attack

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From Fox News: A former FBI agent says the number of people who overstay their visa in the U.S. is a “national security issue” following the terror attack in Boulder, Colorado that left 15 people injured.

Mohamed Sabry Soliman, who’s suspected of firebombing a group of peaceful pro-Israel protesters on June 1 leaving 15 people injured, arrived in the United States on Aug. 27, 2022 on a B1/B2 non-immigrant visa, sources told Fox News. His visa was set to end on Feb. 26, 2023, but he received work authorization. Soliman is an Egyptian national.

Soliman’s work authorization ended in March 2025, around three months before he allegedly attacked the group of pro-Israel protesters.

report from the Department of Homeland Security shows around 400,000 individuals were suspected to have overstayed their visas in fiscal year 2023, the most recent year there’s government data on the issue. These are individuals who lawfully obtained a visa to enter the United States, but didn’t leave when they were supposed to.


According to DHS data, over 1.5 million people have remained in the U.S. after their visas expired between fiscal years 2020 and 2023.

Former FBI special agent Jonathan Gilliam warned in a Fox News Digital interview that visa overstays are a national security issue.

“I think we’ve shown that it’s a national security threat. We’ve shown just by what we’ve seen in Boulder, Colorado, but… there’s numerous other issues that have occurred in this country by people who have overstayed their visas, and I don’t believe that people understand the numbers of these individuals,” Gilliam said.

He added that what happened in Boulder “could happen over and over again because the system of monitoring people who are here on a visa is almost nonexistent once they get in here.”

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In a separate interview last week, Gilliam warned that “Iran could activate sleeper cells inside US and Israel.”

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