At SFGate.com, Bob Egelko explores legal issues in Justice Sotomayor's Monday event at The Commonwealth Club. http://www.sfgate.com/nation/article/Sonia-Sotomayor-talks-affirmative-action-in-San-4230691.php?cmpid=twitterSonia Sotomayor talks affirmative action in San Franciscowww.sfgate.comSupreme Court Justice Sonia Sotomayor, in town Monday to promote her newly released memoir, said she couldn't talk about affirmative action because of a pending court case. In the next breath, she talked about what it had meant to her - admission to Princeton and Yale Law School and the launching o...