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. The technologies, if approved by the Food and Drug Administration, would not only find cancers in their earliest stages before they can do damage or spread, but also deliver a small amount of a drug targeted directly at tumors, which would cause little or no side effects. Pretty neat. Wired News: Nano Killers Aim at Mini Tumors | 
