Tom Homan reveals the 'biggest national security vulnerability' after US strikes Iran

Border czar Tom Homan voiced concern over the presence of Iranian nationalists and other unaccounted illegal immigrants after the United States launched an attack on Iran's nuclear facilities on Saturday night. Homan revealed what he feels is the 'biggest national security' vulnerability the U.S. currently has amid the conflict in the Middle East during an appearance on "Sunday Morning Futures" with anchor Maria Bartiromo.

TOM HOMAN: I've said in the last four years, my biggest concern was this open border. It was the biggest national security vulnerability this country has ever seen. So, I pulled numbers this morning, just from a CBP under Joe Biden — there were 1,272 nationalists from Iran released in the country between OFO and the border patrol. You compare that the Trump administration is zero, right? Zero releases. And right now, because of President Trump's leadership, we have the most secure border in my lifetime, the most secure border in the history of this nation. So we have a secure border, so that was President Trump's big win in securing this nation. We're not releasing people in this country, especially when there are aliens that aren't crossing the border undetected. But under Joe Biden, we had over 10 million people cross that border. But my biggest concern from day one, beyond the fentanyl, beyond the sex trafficking women and children, were the two million known ‘gotaways’ — over two million people crossed that border. We don't know who they are, where they came from, because they got away because border patrol is so overwhelmed with the humanitarian crisis that Biden created. Over two million people crossed the border and got away. That is my biggest concern. And that's what created the biggest national security vulnerability this country's ever seen.

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The U.S. Department of State raised warning levels for U.S. citizens traveling to countries across the Middle East on Sunday.

The changes come after President Donald Trump ordered strikes on three Iranian nuclear facilities on Saturday. Affected countries include Lebanon, Turkey, Saudi Arabia and Jordan.

The measures are most severe in Lebanon, where the state department has ordered the departure of family members and all non-emergency government personnel from the nation due to the heightened security situation.

President Donald J. Trump in The Situation Room, June 21, 2025 (The White House via X)

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The state department increased its warning levels for Americans in both Turkey and Saudi Arabia, but there is no departure order. Meanwhile, Jordan remains at a level two advisory, calling for Americans in the country to exercise special caution.

Defense Secretary Pete Hegseth said President Trump was "fully committed" to engaging in peace talks with Iran before ordering strikes on the country's nuclear facilities on Sunday.

Hegseth made the statement while speaking to reporters on Sunday morning, asked if there was a "particular moment" when Trump decided the airstrikes were necessary.

White House border czar Tom Homan speaks with reporters at the White House, Friday, March 7, 2025, in Washington. (AP Photo/Alex Brandon) (AP )

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"I would just say having the opportunity to witness his leadership, he was fully committed to the peace process, wanted a negotiated outcome, gave Iran every single opportunity and, unfortunately, was met by stonewalling, which is why he gave them plenty of time to continue to come to the table and give up enrichment, give up the nuclear program," Hegseth said.

"But there was... I won't say the particular moment... there was certainly a moment in time where he realized that it had to be a certain action taken in order to minimize the threat to us in our troops," he added.

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Fox News' Alexandra Koch contributed to this report.