Far be it from me to try to read the mind or the motivation of the Prime Minister. There certainly is an aspect to this that is not unlike trade negotiations, in which you certainly cannot show all of your cards at one time, or in which you might in fact try to weigh your cards in one direction at the beginning of a set of negotiations in order to try to influence the outcome in another direction.
I would also want to make the point that I discussed with some people beforehand, which is that at the same time and notwithstanding the role of such things in a negotiation, in some respects this is something very different. This is not trade. This is not a simple economic commodity we're talking about here.
At the same time, I do recognize that many other countries aren't treating it in that way either, and are being very cynical and have been very cynical about the game being played out in the negotiations for quite some time.