[quote=@GalaxyRaider]
<Snipped quote by Techspert>

Baffling that a nuclear plant with live nuclear material in it would be left abandoned. That's a no-no on like every level there is.
[/quote]

When they made the last generation of fission reactors, they were designed to resist meltdown even if hit by some kind of warhead, since those were still around back then.
*Kicks over another piece of rubble*
This maintenance design is definitely some kind of violation, but they also probably didn’t expect someone to walk in and laser it open like that.