Re: Sacoolas
"all extraditions to the US should be halted until they reciprocate and Anne Sacoolas is extradited to the UK."
I would probably agree with this sentiment if such cases were acted on in a linear, FIFO manner ... but they are not. They acted upon concurrently. Creating an artificial backlog at each perceived miscarriage of justice would effectively put a halt to all International matters forever. Is that really what you want?
"He spied on people, but she killed someone."
I suspect you'll be changing your tune in a heartbeat if one of those people turns out to be your daughter.