Siddhartha Mukherjee was a guest on this morning's Today show. He reiterated his view that "as of now the evidence that moderate cell phone use has any link to cancer is very weak" (see next item). The other guest, NBC's Nancy Snyderman, the network's chief medical editor, was even more insistent. "We have, at least for now until something conclusive comes in, put this cell phone thing to rest" because, she said, "The science over and over and over again has not shown a link." Sounds clear, doesn't it.