Read the following dialogue and match each proposition to the correct description of the speakers' stances based strictly on the text.
Director Vance: We must actively de-orbit the defunct Helios-4 satellite. Although it currently poses no immediate threat to our communications arrays, its decaying orbit guarantees it will eventually re-enter the atmosphere. Without a controlled de-orbit, large debris might survive and strike populated areas. The potential harm of an uncontrolled re-entry is a risk we cannot ethically accept, and it far outweighs the operational risks of a retrieval mission.
Engineer Cho: I agree that Helios-4 will eventually re-enter the atmosphere. However, the risk of debris from this specific satellite surviving re-entry is statistically negligible. Furthermore, actively de-orbiting it would require launching a retrieval vehicle. That launch creates a significant immediate risk of collision with active satellites—a far greater hazard than an uncontrolled re-entry decades from now.
- The Helios-4 satellite will eventually re-enter the Earth's atmosphere.Both Director Vance and Engineer Cho agree with this statement.
- The risk of debris from Helios-4 surviving an uncontrolled re-entry is significant enough to justify taking action.Director Vance agrees with this statement, but Engineer Cho disagrees.
- The operational hazards associated with launching a retrieval vehicle are greater than the risks of allowing Helios-4 to undergo an uncontrolled re-entry.Engineer Cho agrees with this statement, but Director Vance disagrees.
- The financial cost of a retrieval mission makes actively de-orbiting Helios-4 impractical.Neither speaker has a stated position on this statement based on the dialogue.