MODERATION EDIT
SPOILER WARNING: This contains spoilers for future episodes.
It is the IT Departement :stuck_out_tongue_winking_eye:
The Earth in Silo Series is poisoned with nanobots that have a detrimental effect on the human body.
50 Silos were built, and since each Silo can house up to 10 000 people, we can assume that 500,000 people are ready to “restart” the civilization. Only out of those 500,000 people, the majority is “scheduled” to die.
The immediate area outside of Silo is still toxic because nanobots are being pumped into the air to maintain the illusion of toxicity. Plenty of other areas on Earth are clear of danger, and it’s possible to survive without any protective gear whatsoever.
It was never the plan to let all 50 Silos survive. Only one Silo that performed the best in terms of intelligence, health, obedience, and other aspects was supposed to “survive.” All other Silos would eventually be destroyed, leaving only “the perfect specimens” to restart the civilization.
This was the role of the I.T. department. They are keeping tabs on all Silos and collecting population data. The Silo that performs the best gets to live. All other Silos were supposed to be annihilated. And this is why the illusion of danger and toxicity needs to be maintained at all times since not everyone is supposed to survive the apocalypse.
At the End Juliette will be sent to clean, Walker from the mechanical ensured that her protective suit wouldn’t be tampered with and the heat tape used for the suit would be legitimate. Her suit, therefore, didn’t have the leak, and she managed to survive long enough to reach Silo 17, and this is kind of the beginning of the end for the whole Silo project in general.