The serpentine Hydra of Grecian myth is well known for its deadly characteristics had many heads filled with fangs and hungry for human flesh, no sword or axe blade no matter how sharp could provide a fatal decapitation, for as we all know the neck stumps would merely sprout more heads to replace the one lost. Today the whole world is menaced by a different sort of Hydra; the good news is that this one has only two heads, the bad news is no one has gotten close to chopping off either head to see if this one shares its ancestor's skill at regeneration. Each head despite being joined at the neck has its own separate name like a conjoined twin.