Stem cell hope, part II

Progress has been made with the altered adult stem cells! Gautam Naik reports (B6) that, at least in mice, scientists have "successfully treat[ed] a version of sickle-cell anemia in the animals." This is only the first step in the vital experimental confirmation of the research. Still, we still must deal with "potentially dangerous viruses" that would be used to bring in the new genes. Also, "complex ailments such as Parkinson's will probably be far harder to treat, even in mice." Bring it on!