Iranian Sleeper Cell Threat Grows After Biden’s Border Failures”

The threat is no longer theoretical. It is real, imminent, and potentially devastating. Federal agencies have issued a new series of alerts over the possible infiltration of Iranian sleeper cells into U.S. territory, a consequence many say stems directly from the open border policies of the Biden administration between 2021 and 2024.

According to data obtained by Fox News from internal sources at the U.S. Customs and Border Protection (CBP), between 2021 and 2024, more than 1,500 Iranian nationals were apprehended crossing the southern border illegally. Of those, 729 were released into the country, representing nearly 48% of all Iranian nationals encountered. Crucially, this number does not include the more than 2 million “gotaways” — individuals who crossed the border undetected during that same time period.

Open borders: Biden’s most dangerous legacy
For many national security experts, these numbers confirm what conservative voices had been warning for years: President Joe Biden’s border policy was not simply flawed — it was criminally negligent. Under the guise of compassion and progressive reform, border security was dismantled, the Remain in Mexico policy was eliminated, active surveillance was slashed, and a dangerous message was sent to the world: the United States will no longer defend its own borders.

We are now living with the consequences. Not only did the open border allow a historic wave of undocumented migration, it also enabled foreign agents of hostile regimes to slip through, including the Islamist regime in Iran — a country that has actively worked to undermine and attack the U.S. for more than four decades.

Iran’s long game: using chaos to infiltrate
In February, under mounting pressure, even the Biden White House was forced to acknowledge the possibility that Iran has infiltrated sleeper cells into the U.S. via the southern border. The National Security Council warned that Iran and its proxies — including Hezbollah and Islamic Jihad — are actively strengthening their presence inside U.S. territory.

Sleeper cells are covert terrorist units planted inside target nations. They lie dormant for years, integrating into society, until they receive orders to act. According to intelligence sources cited by Fox News, these groups are not acting independently — they are organized, funded, and coordinated from abroad, sometimes traveling with forged documents and support from NGOs embedded within migrant routes.

Two types of threats: cyberattacks and domestic terror
The Department of Homeland Security (DHS) and the FBI issued a joint bulletin outlining two primary threats facing the country:

Massive cyberattacks against U.S. infrastructure — including financial networks, utilities, and military systems.

Domestic attacks by sleeper cells — targeting major U.S. cities, religious institutions, diplomatic facilities, and civilian gatherings.

Cities like New York, Washington D.C., and Los Angeles have already increased patrols around houses of worship, Jewish community centers, foreign consulates, and public venues. The NYPD confirmed it is actively monitoring sensitive sites nationwide.

Anti-Semitism and radicalism: tolerated by the far-left
DHS officials admitted that multiple recent terror attacks on U.S. soil have been driven by antisemitic and anti-Israel hatred — a disturbing trend fueled by radical online propaganda and tolerated by some progressive political circles.

This pattern has reignited criticism of the Democratic Party’s ambiguous stance on extremism, and its leniency toward ideologies that endanger national security. For years, leftist activists and even elected officials have downplayed the danger of groups like Hezbollah, while labeling patriotic Americans “xenophobic” for demanding strong border enforcement.

Now, reality is setting in: the enemy didn’t just walk in — they were released into the country by a government that stopped protecting its people.

Trump was right: no border, no nation
President Donald J. Trump, since returning to the White House in January 2025, has made border security a top national priority. In multiple public addresses, Trump has been consistent and unequivocal: “A nation without borders is a nation with no future.”

Under his renewed leadership, border wall construction has resumed, the Remain in Mexico policy is back in effect, and a nationwide internal review is underway to locate, track, and deport individuals released under the Biden administration with potential terror ties.

As a senior DHS official put it: “We are cleaning house. After four years of unchecked entry, the American people finally have a government that takes national security seriously.”

Lawmakers demand accountability
Several Republican members of Congress are now calling for a formal investigation into the release of Iranian nationals during the Biden years. In the Senate, Josh Hawley and Tom Cotton are leading efforts to establish a special commission to determine if any of the individuals released had links to terrorism or espionage.

House leaders like Jim Jordan and Marjorie Taylor Greene have directly named former Vice President Kamala Harris, who oversaw migration policy, as politically responsible for enabling the crisis.

The Republican message is clear: accountability is not optional. It is time to find out how deep this goes — and how many of these cells may already be waiting to strike.

Conclusion: the enemy is inside the gates — and time is short
The U.S. now faces one of the gravest threats in recent memory: the activation of terrorist cells funded by Iran, embedded across the country as a result of open border policies driven by ideology and political expediency.

Thanks to President Trump’s decisive leadership, the country is regaining control over its borders, rebuilding its defensive capabilities, and restoring a culture of responsibility and national interest.

But the threat has already crossed the threshold. Every day counts. Every choice matters.

The border is not just a political issue — it is our front line. And if we fail to protect it, we risk losing the very freedoms and security that define our Republic.