Flying LGA > YYZ > YEG. (Stay tuned for my other post about the LGA > YYZ segment.)
Security was pretty bad. There were 12 people (I counted) in the connections priority security line (on Level 2). It took 34 minutes to process 12 people. CATSA was artificially creating a bottleneck during the x-ray scanning. The CATSA officer manning the x-ray monitor either a) got up and walked around between passengers, or b) just looked away for about a minute while each bag was up on the display.
Regular security line stretched all the way down the hall on Level 2. PAX were being sent down from Level 3 as, apparently, they weren't even processing priority folks up there due to the craziness.