Re: Now this really
"What happens when courts on either side of the Atlantic come to opposite conclusions on virtually identical cases?"
TTIP 2.0 happens, and the US takes back control?
Once Brexit happens and the Yanks over-promoted trade agreement turns out to be the undead remains of TTIP, the UK will presumably have to abide by whatever the US wants.
https://www.independent.co.uk/voices/comment/what-is-ttip-and-six-reasons-why-the-answer-should-scare-you-9779688.html
Btw, "independent group" may have been an interesting choice of name for this ambitious young Party Leader in waiting:
https://www.independent.co.uk/news/uk/politics/embarrassment-for-rising-star-of-labour-and-betting-shop-critic-chuka-umunna-after-he-accepts-20000-8748755.html