Re: A CITIZEN'S rights
I'm pretty sure that if you want to come back to the UK you shouldn't be flying off to #SomeRandomCountry to molest children (as defined by UK law as under 16 for sex related issues).
It was not long ago that being a gay male couple was illegal in the UK until both parties were 18 of older. They probably wouldn't advertise the fact that they were a couple if they went on holiday to say Russia?
So should you adhere to the law of the country they are in, the one they are going back to or both?
Also I thought the US rights were only applicable to persons in the US? If you haven't gone through passport control are you not still in 'international waters' or something? Or maybe just a short trip from the Guantanamo Bay luxury resort?