Who cares what scaremongering professors have to say – I want my nanotech augmentations, and I want them now. Researchers have engineered blood-compatible nanostructures by coating them in the anticoagulant heparin, so that they can exist in the human bloodstream without causing problems. Hopefully I’ll not have to wait too long for my own army of nanomeds to remove the carcinogens and burger fat from my capillaries.