In 1974, Summerlin proudly displayed white mice with black patches of fur, claiming that he had successfully transplanted tissue from unrelated animals without rejection.1 He confessed to deception when laboratory assistants discovered that the transplanted sites were blemished by alcohol, leading to use of the phrase “painting the mice” to indicate research fraud. In 2005, Korean scientist Hwang was lauded when he proclaimed that he had created the world's first stem cells from a human embryo. The praise was short-lived when his own university concluded that his work was also fraudulent.