Doomsday Survival: Why?

It's a tube of booster, but where it came from I don't know. An access card with intermediate rights, which doors does it open? In the laboratory full of corpses, even the lights are still murky. I don't know what terrible things were held here. Why has the world become so turbulent, and the people who swore to protect the truth have been betrayed one after another? Behind all this, I only have one sentence - why? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.