Aimen Dean, who spent eight years infiltrating Al-Qaida for MI5 and MI6, knows the enemy inside out. As a former member of the terror group himself, he formed bonds with operatives and even served as a “kind of spiritual coach” to terrorists in London, gaining insider access to their plots.
His espionage thwarted attacks like a bid to bomb the New York Subway. But Dean pulls no punches on the current danger: there are “hundreds” of sleeper agents lurking in the shadows, primed to strike.
A new 9/11 is coming any day from the hundreds of al Qaida sleeper agents ready to unleash carnage in the UK, says ex-MI6 spy https://t.co/ppWAvJYPq3
— Daily Mail (@DailyMail) December 27, 2025
“Unfortunately, I would love to tell you the world is an amazing place, but it’s not,” Dean told The Sun. “The problem is the new world order is now the new world nightmare. We have rogue nations such as Iran aspiring to become nuclear powers. And a threat like Iran needs to be countered because of the fact that they are a nation that has sponsored terrorism.”
Al-Qaida found safe harbor in Iran for 25 years, Dean revealed, allowing the regime to orchestrate attacks that killed British nationals in Saudi Arabia—orders straight from Tehran.
Dean claims this Iranian backing has supercharged the spread of Islamic fundamentalism in the West, eroding trust in institutions while violent extremists wait for their cue.
“It’s not about if another 9/11 or 7/7 attack will happen; it’s about when,”Dean warns.
He slammed Europe’s fixation on Russia as a distraction from the real peril: “The biggest threat to the UK and Europe right now isn’t Russia but the spread of Iranian influence. We’re going to see many more lone-wolves acting for the regime. When it comes to sleeper agents in the UK, it’s impossible to tell how many there are but there are hundreds.”
“Islamic fundamentalism is much more sinister as it undermines from within,” Dean explained, adding “It pushes people to distrust institutions and in some ways is much more dangerous than violent extremism. The violence is just the tip of the iceberg.”
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