[More nodding - he's not sure if he should interpret that as trying to stop death itself or just make the place even safer than it already is. He can't really disagree with the latter so in the end he opts to not disagree at all.]
A very admirable ambition. [There's a lot more he doesn't understand yet and it's probably clear to see that there's a lot of questions left. He doesn't want to pester her though and so he smiles in gratitude.] Thank you, Miss PM. You've been very helpful~