[JumpCrisscross]

> Surely some laws in the UK were broken?

This was almost certainly done by American embassy staff under cover. It’s thus a state, not criminal, issue. If Britain wanted to eject American diplomats for spying, it could do that, but...why?

[matthewheath]

It's still a criminal issue under UK law, in that the law was broken. Obviously, diplomatic staff cannot be prosecuted but that does not negate the fact the law was broken.