New Research Theorizes Link Between Autism And Toxic Chemicals

 During the last decade the reported cases of autism and other illnesses related to brain development have dramatically increased not just in the U.S. but around the world. Scientists say the increase cannot be explained by genetics and they believe it's linked to the increase of toxic chemicals in the environment. Producer Zulima Palacio talked to several scientists and prepared this story. Mil Arcega narrates.