It took two more hours to neutralize all the threats inside, as well as take note of everything inside.
Kael had also warned them about a possible self-destruct button—possibly a hidden one. Kael didn't know whether there was one, but the warning did remind the personnel on site to look out for it.
There were typical places where buttons were placed, and it naturally wasn't exposed and accessible to everyone. What if someone accidentally pressed it, right?
With the presence of so many soldiers, they doubted someone would be able to activate it (if there was one). They had also deactivated the signals around so there shouldn't be remote activation (assuming the bomb existed), but who'd have thought there really was something?
It was in the main administration room, which had fortunately been one of the first places targeted and neutralized, so they managed to prevent a tragedy.
