Joel Thesiger, 6, center, who has autism, gets a high-five while being carried by his father, Paul Thesiger, of Silver Spring, Md., at the end of the &quot;Walk Now for Autism Speaks&quot; event on the National Mall in Washington, on Saturday, Nov. 6, 2010. The three-mile walk funds research and raises awareness of autism. Photo: Jacquelyn Martin, AP