The WHO have no motives other than the greater good and in their review of previous research undertaken, it concludes no purpose to keep the deadly virus. It does bring into question the use of the live virus by either country as a biological weapon. This is their motive or concern for contesting it's destruction. Simile to a game of chess, it is not known if there are more samples of the virus held by other countries or the extent of each countries developments or intentions  with this stock. I do however know that the effects of this virus spreading would be devastating as it was in recent history. Worldwide, none of us are protected against smallpox and vaccinations could not be made quick enough to help the entire world. There is still no cure and scientists have failed when trying to replicate the live virus in monkeys. According to Hammond (2011),"Smallpox vaccines use various strains of vaccinia virus, and do not contain variola virus or need variola virus for manufacture." This is yet another reason that the deadly virus should be completely eradicated and the efforts of the WHO and the worldwide collaboration that was once made are again supported. We do not need to keep the evil threat to human kind to manufacture the vaccines against it.