Well, that's the danger. If you have provisions that allow you to modernize or improve certain elements without having to start to unravel the whole agreement, then it can be done.
In CETA, for example, we have a number of provisions that allow, or even require, us to revisit certain issues to see whether they need to be modernized and updated. In NAFTA, not across the board, but in those areas that are most likely to need some kind of updating, we will be looking at provisions that could achieve that.