“The responsibility for the risks we posed to others in some of our most extreme actions in those underground years never leaves my thoughts for long. The antiwar movement in all its commitment, all its sacrifice and determination, could not stop the violence unleashed against Vietnam. And therein lies cause for real regret.”
Source : "The Real Bill Ayers". Article by William Ayers, www.nytimes.com. December 05, 2008. 
