Thursday, Mar. 19, 2009

Douglas Melton

AGE: 55
OCCUPATION: Harvard Stem Cell Institute co-director
PREVIOUS APPEARANCES ON THE TIME 100: 1

PRO: With Obama ending an eight-year ban on federal funding for stem-cell research, Melton can push ahead even further with his lab's efforts to find cures for diseases such as diabetes and Parkinson's.

CON: As the resources for embryonic-stem-cell research grow, so does the outcry from its critics.