So, if I follow your reasoning, are you saying that to decrease the line-ups that are more and more frequent at Montreal-Trudeau airport without adversely affecting security, all we need is more staff?
As I understand it, in order not to decrease the level of security, financial resources have to be allocated to hiring staff or to new technologies. Perhaps there are technologies that can achieve that result. Otherwise, the travellers automatically bear the brunt, either in the quality of the service or in the time they have to wait.