Maybe there is a design flaw. Maybe someone tried to retrieve something dropped or was goofing around. Right or wrong the zoo will still end up paying. I've never seen or heard of OSHA coming out and not fining for something. Then there will be damage claims. Finally, the "for the children" scardy cats will try to ban Tigers probably. 1 dead and 2 injured. The cat put down. It's sad all around.
The national standards for a tiger enclosure are a 16'4" vertical barrier.
See post #43 as to who was responsible for the standards.
The SF Zoo originally claimed the barrier was 20' tall.
Now, as it turns out, the barrier was only 12'.
"Maybe" is an understatement.