Asbestos, an almost indestructible mineral once installed as building insulation, poses no health risk unless the asbestos is disturbed and asbestos fibers are released into the environment.
Conclusion (should not)
The government should not require removal of all asbestos insulation.
Evidence
Asbestos poses no health risk unless it is disturbed and fibers are released.
Removing asbestos from buildings disturbs it, thereby releasing asbestos fibers.
Evaluate
This argument has a Plan / Goal structure:
PLAN: Governments should not require removal of all asbestos insulation.
GOAL: Minimize health risks from asbestos.
The core reasoning is that removing asbestos itself causes disturbance, releasing hazardous asbestos fibers, thus posing a health risk.
To strengthen this argument, we need to show that not removing asbestos is better for health than removing it because removing it presents a greater or continued risk of exposure. To object to this argument, we might say,
Goal
Let's find an answer that increases the plausibility that requiring asbestos removal would increase health risks, or that reassures us that leaving it in buildings doesn't present some ongoing hazard that's even scarier.