Wouldn’t it be wonderful if there was a single blood test that could pick up not just one, but dozens of early cancers, allowing early treatment, and countless lives to be saved? According to an auspiciously named American high tech company, GRAIL, Inc., just such a goal might be in reach. It claims it’s Galleri blood test, which uses clever technology to detect fragments of tumour DNA in the blood, can detect many common cancers in the early stages, with a false positive rate below 1%. On the back of this, it has secured a ‘commercial partnership program‘ …