Does Bill Ayers have personal security people?

This guy bombed the Pentagon and police stations in the 60's and 70's and still today says he is not sorry and wishes he has done more, he even said this in an interview on 911. He also did a magazine cover in the Chicago magazine about a year ago with him stomping on the American Flag on the cover. This guy is a terrorist and an enemy of this country and he's living in Chiacgo among us. How has someone not attacked him? Does he have personal security?