Nanotechnology Used To Kill Cancer

to_kallon writes "A company called Kereos is developing a pair of nanotechnologies to identify tumors that measure just 1 mm in diameter, then kill them with a tiny but precise amount of a chemotherapy drug."

Comments

Programming Error?

[Alphanos]

This seems like an incredibly dangerous idea to me. Supposing that the nanotech "programmer" produces a logic error, what's to prevent the thing from simply killing every cell in your body? The distinction, after all, between cancerous and "normal" cells is pretty fine.