Michael J. Fox shakes hand with supporters, Wednesday, July 13, 2005 at the U.S. Capitol. Fox joined members of the House and Senate to urge passage of stem cell research legislation. Stem cell research on human embryos holds the most promise in the search for cures for a list of diseases, including Alzheimer's, Parkinson's, diabetes and some types of cancer. Fox suffers from Parkinson's disease.
Credit: AP