FBI Heightens Security Measures Amid Rising Iranian Retaliation Threats on US Soil: Key Targets Identified

Leading security analysts have issued a stark warning that the potential for Iranian attacks on U.S. soil has significantly increased following former President Donald Trump’s recent threats to obliterate the nation’s “entire civilization.”

This alert was issued shortly after the White House disclosed that it had identified cyberattacks from Iran targeting American water and energy infrastructures.

In response, the FBI and Joint Terrorism Task Forces have heightened their vigilance, implementing increased security measures in major cities across the country.

In what appeared to be a retaliatory move, several semi-official Iranian news outlets circulated documents purportedly from the Islamic Revolutionary Guard Corps. These documents reportedly included a list of offshore Israeli gas fields marked as potential targets for Iran’s counteractions following Trump’s statements.

Although there have been no direct attacks on U.S. territory as yet, former U.S. officials expressed to the Daily Mail that the likelihood of such incidents rises as Iran’s desperation escalates.

Jen Gavito, a former diplomat and Pentagon adviser now at The Cohen Group, said Iran’s ‘asymmetric toolkit’ poses the greatest danger.

She warned that Tehran prefers deniable, indirect attacks rather than open military confrontation with the US.

Its record includes assassination plots, cyber intrusions and overseas bombings, including the 1994 Buenos Aires attack that killed 85 people.

Soccer World Cup venues, such as the MetLife Stadium in New Jerse, make for potential targets in the US, said Charles Marino

Iranians gathered at infrastructure sites including bridges and power plants as they taunted Trump’s message of annihilation 

‘There is an escalatory ladder on their side as well,’ Gavito said, warning Iran has multiple ways to intensify its response.

US President Trump has set an 8pm ET Tuesday deadline for Iran to strike a deal – or face sweeping attacks on bridges and power stations.

Federal counterterror teams have quietly been spreading across the country, preparing for multiple scenarios since the war began in the Middle East. 

Officials stress there is no confirmed, credible threat to the homeland – but the risks being modeled are deeply unsettling.

Those scenarios include sleeper cells suddenly activating, lone attackers acting independently and even contract killers targeting US politicians.

If Trump follows through on his threat of escalation, Gavito said it is ‘far more likely’ those methods will be deployed.

So far, Iran has focused retaliation on Israel, US bases and global energy routes, including disruption in the Strait of Hormuz.

Stefano Ritondale warns of new terrorist cells in a ravaged Iran

That vital waterway carries roughly a fifth of the world’s oil in peacetime, making it a critical global pressure point.

On Tuesday, a purported Islamic Revolutionary Guard Corps document circulated on Telegram by the semi-official Iranian Tasnim News Agency highlighted Israel’s Karish gas field and Tanin gas field as strategic targets. These critical offshore assets underpin Israel’s energy supply, economy and regional influence. 

The critical offshore assets underpin Israel’s energy supply, economy and regional influence. 

But Gavito and other experts warn that while Iran still appears to be targeting strategic, rather than civilian, targets, Tehran could still turn its sights on the US homeland.

And there are already signs of it happening. 

Earlier today, the Trump administration said that hackers backed by the IRGC had begun a series of cyberattacks on water and energy systems across the US. 

The alert did not specify which facilities were targeted or whether any damage had occurred. 

Officials said the attacks were aimed at equipment produced by a major American manufacturer of industrial control systems. 

The advisory, issued jointly by the FBI, the National Security Agency, the Energy Department, and the Cybersecurity and Infrastructure Security Agency, said the attack was meant to ’cause disruptive effects within the United States.’

Trump said he would target power plants and civilian bridges 

Smoke and flames rise behind buildings after an explosion in Tehran, Iran, on another day of strikes by US and Israeli forces

But the deeper fear among intelligence officials is terrorist attacks and the activation of sleeper cells. 

Charles Marino, a former Homeland Security (DHS) adviser and Secret Service supervisor, warned that attackers seeking mass casualties would likely target soft sites with large crowds and limited security.

These include concerts, sporting events and busy public spaces where people gather in large numbers.

One looming concern is the upcoming FIFA World Cup, which will draw global crowds and intense media attention.

Such events have historically attracted extremist plots aiming for maximum visibility and impact.

Marino pointed to the 2008 Mumbai attacks by Islamic terrorists as a chilling example of coordinated strikes.

In that attack, multiple teams hit different locations in quick succession, killing 166 people and paralyzing the city.

He urged DHS to raise the national threat level immediately and expand security measures nationwide.

‘Is it possible you have 10, 15, 20 people… carrying out near-simultaneous attacks? Yes,’ Marino said.

US Navy fighter jets take off from USS Abraham Lincoln (CVN 72) during Operation Epic Fury

Marino argues the threat has been building for years, not emerging suddenly in the current crisis.

Groups backed by Tehran, including Hezbollah and Hamas, have maintained long-term networks. These networks could in theory be activated if tensions escalate further.

He also pointed to border vulnerabilities, noting migrants have entered from more than 180 countries, including regions with extremist activity.

While not evidence of infiltration, officials acknowledge the complexity of monitoring potential risks across such a vast system.

If Marino fears organized plots, former FBI agent Jason Pack sees a more unpredictable and immediate danger.

He warned the greatest risk may come from lone individuals already inside the US, radicalized and waiting for a trigger.

‘The most immediate domestic threat… is the self-radicalized individual already living inside the US,’ Pack said.

He noted Iranian-linked media have publicly named US and Israeli targets, stopping short of direct orders but encouraging violence.

This approach allows Tehran to maintain plausible deniability while still inciting potential attackers.

‘Iran doesn’t do things like Pearl Harbors,’ Pack said. ‘They do more slow bleeds – proxies and cutouts.’

That strategy makes detection harder, as attackers often operate without direct ties to foreign handlers.

The US hit dozens of military targets on Kharg Island, a crucial Iranian oil export hub, overnight

The FBI and Department of Homeland Security have placed counterterrorism and intelligence units on heightened alert

Many have no criminal history, no suspicious travel and no obvious warning signs until they act.

The gap between suspicion and legal action, Pack said, is exactly where the danger lies.

Despite the warnings, he stressed that US counterterrorism agencies have spent years tracking Iran-linked threats.

‘The American people should be alert, not afraid,’ he said, urging vigilance without panic.

Yet some experts believe the greatest risk may emerge after the conflict ends, not during its peak.

Stefano Ritondale, a geopolitical intelligence analyst, warns that regime instability could create more dangerous outcomes.

He said a fractured Iran could produce extremist splinter groups more unpredictable than the current government.

Ritondale draws comparisons to Iraq after the fall of the Ba’ath Party. That collapse helped fuel the rise of al-Qaeda in Iraq, which later evolved into ISIS.

Iran’s missiles, drones and proxy networks would not simply disappear if the regime changes. Instead, they could fall into the hands of splinter factions with global ambitions.

‘Just because the war is over,’ Ritondale warned, ‘the threat of terrorism… would not be over.’

The current crisis began after US and Israeli airstrikes on Iran on February 28. That offensive rapidly escalated into a regional conflict involving 20 countries and costing thousands of lives.