one rule for America and another for us

There's been a lot in the news recently about British Nationals being extradited to the USA for crimes which America is interested in but which haven't actually taken place on American soil. I've been bemused how this works when the UK and USA have a special relationship, surely they can trust us to prosecute our citizens in our own courts.

Then there's been situations where America won't extradite their citizens to the UK or elsewhere for crimes committed in those countries, instead preferring to deal with it themselves. What's that about? And why does the rest of the world role over and accept it?

And now this week it all comes to a head. A member of the American Armed Forces goes 'postal' and shoots 16 civilians in Afghanistan. America has decided that this man must be dealt with in the USA and refuses to discuss the matter further. I am assuming that this poor man has had a mental health breakdown of some sort and needs psychological help but even so surely it is right that he should be dealt with under the Afghani justice system. At the very least there should be an arrangement where by the country which has suffered this travisty is involved in the process, but no.

Don't get me wrong, I'm not anti America, but I can't stand the apparent justice system domintion by this super power, or the way the rest of the world is OK with it. How can we be OK trusting the world's justice decisions to a ntin which still has capital punishment?

Something seems very wrong.
Or is it just me?