Antonio Villaraigosa: Let me distinguish public service from elected office.  I was 15 years old and I was working at a Safeway and there was a boycott, a picket line in front of the Safeway, and it was a picket line and a boycott against the grapes.  United Farm Workers were participating in that boycott.  And almost from the very beginning — I have never worked in the fields, I didn’t speak any Spanish, I certainly didn’t even totally understand the plight of these workers — but I understood intuitively that I had to participate.  And ever since then, as a high school student, and college, really throughout my life, I have been committed to standing up and speaking out for people who don’t have a voice.  So I would say I was 15 years old.  I never was interested in actually running for office, but I did want to be a change agent.  I did want to be part of something bigger than me that empowered people and that made a difference.