Ayers' radical group set off bombs at the pentagon, and many other government targets in the early 70's to protest the Vietnam War. Nobody was hurt in those blasts.
He's now a professor of education at the University of Illinois, Chicago.
Friday afternoon Ayers shared his experiences in the classroom with an audience of educators and education students at Fresno State.
Several tea-party members protested outside of the building where Ayers spoke. They protested his radical past and his more recent association with Barack Obama before he became president.
