Just to reiterate, it's important to note that the end of this amendment reads, “the review shall include a study of the interaction”, because the first part indicates all the provisions that could be looked at on their own. We would simply prefer not to leave it to chance that the interactions would be looked at, and it's much more likely to be looked at if it's sitting there expressly in the text.
On December 10th, 2012. See this statement in context.