I myself participated in this type of negotiations for the Canadian delegation in the 1970s, and I thus understand the importance of a fairly high level of confidentiality, due to the importance of the issues. These issues may even, in some cases, influence markets. If a rumour begins spreading that a concession is being granted for a given type of product, you can easily imagine how that would affect the companies listed on the stock exchange. That is one of the reasons why this type of confidentiality exists.
In addition, there is often more than one party. In fact, some negotiations are conducted among more than two parties and that is why they must be fairly careful.
As I stated earlier, the presence at the negotiating table of provinces that are not there to speak on their own behalf, but rather to see how the negotiations are carried out, means that information will be shared more easily than in the past, in my opinion.