The AAAS is the American Association for the Advancement of Science. This the main organization of all scientists in all fields in the United States. They publish the journal Science, considered to be one of the two top science journals in the world, among other things. If any organization speaks for science as a whole in the US, it is the AAAS.
In this clip you will hear from the president of the AAAS, and from Dr. Francis Collins, Director of the Human Genome project, and from two high school teachers from Dover, PA where the last court battle over teaching creationism in science classrooms was held.