The head of MI5 asked Kash Patel to protect the job of a London FBI agent, who dealt with surveillance tech that British security would need to monitor a new embassy China wants to build in London, U.S. officials said. After Patel agreed to fund the agent's role, the job is now slated to disappear.

F.B.I. Director Is Said to Have Made a Pledge to Head of MI5, Then Broken It
The episode has contributed to concerns among intelligence allies that Kash Patel, brash and partisan, is also unpredictable and even unreliable.