[Macha]

I doubt these card readers would prevent someone leaving the part of their building they’re in, as that’s a lesson written in charred corpses and was a foundational aspect of health and safety becoming a thing: https://en.wikipedia.org/wiki/Triangle_Shirtwaist_Factory_fi...

In theory it might prevent access to other buildings, but equally often the card readers are around doors of mostly standard glass or near internal windows of the same.

So if that’s the motivation, it doesn’t seem like a particularly effective mitigation

[mikey_p]

Or the Victoria Hall disaster (183 dead), or Cocoanut Grove (492 dead), or The Station Nightclub (100 dead), or The Beverly Hills Supper Club (165 dead), or.....

Also in what world is a badge reader going to contain an armed gunman unless the walls, floors, doors, and windows are also bulletproof??

(Triangle shirtwaist fire resulted in 146 dead)

[XorNot]

Theres footage online of a basic security door stopping an armed robber from escaping despite him trying to shoot the lock.

Bullets aren't universal door openers, and shooting your way through one lock doesn't magically unlock the next one.

[mikeyouse]

And the bullets and time spent getting through the door are bullets and time that aren’t used harming the people behind that door.

[Gigachad]

I've volunteered at events hosted in older buildings before and it's always such a top of mind thing to enforce a limit on the number of people in the building at any moment. Since these places have the capacity to hold a lot more people than can escape through the exits in the event of a fire.