Colin You are reading this completing wrong and your just being a tough guy. It is ok if others tell people to go google something but you are just being nasty when you suggest the same thing. That's just how the world works. You are like a lot of other bad people on PFM.
Trade deals with the US are just like going to the sweet shop. You can pick something different whenever you choose. It is very simples. For example UK might get fed up with the US sweet shop deal and go for Brexit2 and make a better deal with a much bigger trading bloc then the US. Of course the UK will always hold the ace cards.
A lot of nonsense has been posted on PFM over the last couple of years about trade deals. Sure they can be done real quick and changed at will. As Tommy Cooper would say 'Just like that'
Really it is best to take the option to wait until the deal is done and the details come out. Sure it will be all ok and we can examine it and think about it then.
Off with you now tough guy