[quote=@Nytem4re]
Someone could have come up with a perfectly valid containment system/failsafe in the case the reactor is even remotely close to a breach. You know, sorta like a nuclear reactor? I mean RWBY has access to dust.

And in the first place, why did anyone even consider letting it's so called students run off and participate in activity that is regulated to the police/military, not 14-18 year olds. 
[/quote]

It seems to me access to dust is [i]more[/i] reason why it would explode and not less. The stuff is volatile as shit.

And that age bracket is 17-21. Ruby is an exception, she was admitted several years early because of extreme skill and getting arrested by Goodwitch.

The logical thing for Beacon would be a simple full body scan when a student first accepts his role and another one anytime he has been gone for a long period of time. Just to ensure that they are not smuggling in explosives into the school. Like basic airport security which by the way should be present at the loading docks for the airships which they use to get to Beacon which there is no way in hell Gren would pass.