As the BBC reports, progress is being made in precision delivery mechanisms for anti-cancer drugs. "If you put a drug into a tumour with BioSilicon there are no mice deaths in the lab. If you take the same amount of drug and inject it straight into the tumour, there are 100% mice deaths." This is a growth area in cancer research at the moment, and one that promises to make all cancer treatment a great deal more effective and less damaging to the patient. Real progress towards reliable cancer therapies is essential for healthy life extension - the extra years we could gain through regenerative medicine will be lost to cancer unless we can treat it.