human
I too waited over an hour with my family. We were lucky to have sat near someone who worked for AEG and explained that the security measures required by the NBA were a part of the hold up. Safety is a top priority but it also was a safety concern for those waiting outside, especially in the heat. 
My biggest problem was that there was no information given to the crowd. It would've been helpful for someone to walk through the crowd or use a megaphone to let us know we were going to go through electro/magnetic detectors, that backpacks would be turned away (despite what the ticket said), & to be prepared by emptying our pockets ahead of time so we could quickly & efficiently enter the arena. Tickets also could've been scanned prior to security as to not create a 2nd bottleneck. It appeared that no one was thinking outside of the box to problem solve & that the general demeanor of the event staff was "I'm doing what I was told." 
I hope that this doesn't deter future events from coming.
gpt
{"moderation": ["safe"]}