Makes more sense when you realize that the UK and US governments are essentially one and the same. When governments talk about sovereignty, they don't mean independence from other governments or from international bodies; what they really mean is independence from any competing ideologies. There is no substantive difference between the ideologies of the US and UK governments.

On Fri, Feb 5, 2016 at 11:00 AM grarpamp <grarpamp@gmail.com> wrote:

http://politics.slashdot.org/story/16/02/05/1457229/uk-wants-authority-to-serve-warrants-in-us
http://www.usatoday.com/story/news/2016/02/04/uk-wants-authority-serve-warrants-us/79851282/
British and U.S. officials have been negotiating a plan that could
allow British authorities to directly serve wiretap orders on U.S.
communications companies in criminal and national security inquiries,
U.S. officials confirmed Thursday. The talks are aimed at allowing
British authorities access to a range of data, from interceptions of
live communications to archived emails involving British suspects,
according to the officials, who are not authorized to comment
publicly. ... Under the proposed plan, British authorities would not
have access to records of U.S. citizens if they emerged in the British
investigations. Congressional approval would be required of any deal
negotiated by the two countries.