Where do you stand on becoming part person, part machine? This week we hook up with three pioneers in the field of cybernetics including walking cyborg Kevin Warwick, who volunteered his own nervous system to test out a new way to connect up with the machine world, Markus Groppe, who is trialling an implantable chip to restore vision to the blind, and Andrew Schwartz who's developing neural interfaces to couple the brain's motor circuits to a robot. Plus, news of an H5N1 'flu furore as scientists create the most dangerous virus imaginable, and a voyage to the deepest subsea vents ever discovered...