Cabotage!
I have to agree strongly with what M. Spinetta says; the whole cabotage thing has been a waste of time; had this not been brought into the equation, we might well have achieved a deal long before now. I've long suspected that this was brought into the mix by those who were opposed to a deal, solely on the basis that they knew it was something the Americans would never agree to.
There is apparently a new round of talks coming up in June (why wait so long; wouldn't now be an ideal time, so that airlines can take advantage of a good Summer season), so hopefully some sense can be achieved. Even if those countries (how many actually - just the UK?) insisting on cabotage could be left to one side, so that everyone can make some progress, it would be a move in the right direction.