GEOFF BENNETT: Today, British police arrested a 22-year-old on suspicion of Terrorism offenses connected to a possible plot against the British air base at Fairford.

Over the weekend, the U.S.

Air Force evacuated bombers from that base for fear of an attack.

Nick Schifrin has been following all of this and joins us now.

So, Nick, based on your reporting, what more do you know about this latest arrest?

NICK SCHIFRIN: Geoff, this was the seventh arrest, but a senior British official points it out to me that this was the first arrest in one week, meaning it was the result of Britain's counterterrorism investigation, rather than the rushed initial police response.

And it was last Sunday when we saw police arrest five men on the suspicion of terrorism, who were subsequently released on bail.

They didn't have any weapons or explosives, although they did have gasoline, leading some officials to suggest to me it was a dry run or perhaps a diversion.

But a U.S.

official tells me that, even before that arrest, the U.S.

was informed of a possible -- quote -- "imminent attack."

The base went on lockdown and families were moved.

Since then, British and American officials have said to me and in public that this was an Iranian-backed attack on the base from which U.S.

B-1 bombers have attacked Iran.

And the U.S.

evacuated those bombers over the weekend.

You see some of the bombers leaving Fairford right there.

A U.S.

official points out the bombers were so close to the fence, you could practically throw a rock at them.

And we heard yesterday from Vice President Vance and President Trump acknowledging Iran's connection and delivering a new threat.

J.D.

VANCE, Vice President of the United States: We do feel with some confidence that the Iranians are -- they're trying to do what the Iranian state has done for 49 years, which is engage in acts of terrorism against the United States.

DONALD TRUMP, President of the United States: And we actually know the people that made the threat, and they got themselves with a big problem.

NICK SCHIFRIN: And, today, those bombers are back in the U.S., Geoff, from which they have attacked Iran in the past.

GEOFF BENNETT: And, Nick, what more is known about the threat that was posed?

NICK SCHIFRIN: So, a senior British official tells me that one of the threats was a possible drone attack.

Now, that's a threat that American officials have acknowledged even in the United States at U.S.

bases in the U.S., simply because the war in Ukraine has proven that drones are so cheap and so easily can deliver explosives.

And in this case, there is a direct precedent.

It was in June 2025 that Ukraine launched an audacious attack with more than 100 drones that had been hiding inside Russian shipping containers.

And you see there, Ukraine says it destroyed 40 Russian bombers on four military bases thousands of miles from Ukraine's border.

Vice President Vance said yesterday that the moving of the bombers was -- quote -- "out of an abundance of caution."

But American and British authorities have been warning about Iranian attacks on Britain, on the United States for years.

The head of Britain's domestic spy agency, MI5, Ken McCallum, last summer said the U.K.

had responded to 20 Iranian-backed plots in the previous three years.

And a senior British official tells me tonight, Geoff, that the counterterrorism operations against Iranian-backed plots have been going for years and are ongoing today.

GEOFF BENNETT: Nick Schifrin, our thanks to you, as always.

NICK SCHIFRIN: Thank you.