I think a good example of this is United Parcel Service's complaint under the North American Free Trade Agreement. If they win, or if the Canadian government settles the case before the tribunal, then what will likely happen is that UPS will have access to Canada Post's infrastructure and the urban markets. The problem is that they'll maximize their profits in those lucrative urban areas at Canada Post's expense, and Canada Post needs the profits it makes in urban areas to finance the universal service obligation. It costs a lot of money to deliver to rural communities. Even if you pay rural deliverers low wages, it still costs a lot of money to deliver. So Canada Post needs the profits it makes in downtown Toronto to continue to be able to provide rural mail delivery.
If competitors like UPS do get access to that market, that will undermine the universal service obligation. And I should say that the universal service obligation is an international obligation. It's like a treaty under the United Nations, through the Universal Postal Union. All national postal administrations are members of the Universal Postal Union, and they're bound by the universal service obligation.