On Friday, the World Health Organization reiterated that the novel coronavirus, which caused a major pandemic in the world, is "natural in origin". Frankly speaking, that's not a fresh conclusion. As early as in January, there had been wide consensus among scientists that the novel coronavirus could not possibly have come from man-made sources and that its origin was definitely in nature. A few Indian scientists claimed it might have been "man-made" in origin in their shared paper on the pre-publishing website BioRxiv, but they soon withdrew that paper and apologized for that groundless guess. Yet some US politicians have...