Very good.
It's been said a few times at this committee that restarting the air travel sector after the pandemic will not be like switching on a light switch. If Nav Canada were to shut down these air traffic control towers and lay off the aircraft controllers, can you give the committee an idea of some of the challenges Nav Canada would face and some of the impacts on the air-travelling public, if we then had to reopen all these air traffic control towers and rehire all the staff after the pandemic is over?