The only thing I would say is that with the length of time it took to negotiate this agreement with the United States, and the fact that it was negotiated under a previous administration with President Obama and Prime Minister Harper, and was then reiterated and supported by President Obama and Prime Minister Trudeau, I think for the certainty that our travellers would receive in being able to access additional pre-clearance facilities that they can't now, we want to go forward.
On May 15th, 2017. See this statement in context.