In the May 29 issue of the online NY Times is a piece purporting to show how sun screens have hoodwinked the public into thinking they offer protection against melanoma. They cite studies showing that without protection against UVA (one type of UV light, the other being UVB) that there is no protection against melanoma. Which of these two types of ultraviolet light causes melanoma is not settled science. There are robust studies that go either way. Dr. Stark recommends that any sunscreen contain protection against UVA and UVB but the fairly incendiary piece in the Times does little to advance the discussion about sun screens.