15 November 2025

F.B.I. Director Is Said to Have Made a Pledge to Head of MI5, Then Broken It

Adam Goldman

At a secret gathering in May, south of London, the head of Britain’s domestic security service asked Kash Patel, the F.B.I. director, for help.

British security officials rely on the bureau for high-tech surveillance tools — the kind they might need to monitor a new embassy that China wants to build near the Tower of London. The head of MI5, Ken McCallum, asked Mr. Patel to protect the job of an F.B.I. agent based in London who dealt with that technology, according to several current and former U.S. officials with knowledge of the episode.

Mr. Patel agreed to find funding to keep the posting, the officials said. But the job had already been slated to disappear as the White House moved to slash the F.B.I. budget. The agent moved to a different job back in the United States, saving the F.B.I. money but leaving MI5 officials incredulous.

It was a jarring introduction to Mr. Patel’s leadership style for British officials. They had long forged personal ties with their U.S. counterparts, as well as with three other close allies, in an intelligence partnership known as the Five Eyes.

The relationships among the organizations matter because many top national security officials view trust and reliability as paramount to sharing critical information with allies — vital for communication between agency directors, and hard to restore once lost.

On the same day in 1946 that Winston Churchill delivered his Iron Curtain speech in the United States, Britain and the United States secretly signed the pact that formed the basis for their intelligence alliance. It was an outgrowth of their collaboration during World War II. The partnership expanded during the advent of the Cold War to include other countries — Australia, Canada and New Zealand — earning it the name Five Eyes.

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