Anthony Romero has one of those jobs that require you to practice what you preach. Just one week before the 9/11 attacks, he became executive director of the American Civil Liberties Union, the sixth director in the history of the 92-year-old civil rights organization. In the aftermath of 9/11, Romero, the first Latino and first openly gay man to lead the ACLU, also led efforts by the organization to defend people on both sides of often-emotional debates on religion and prejudice. Romero, 47, spoke last month at the Tufts University Richard E. Snyder President’s Lecture Series on the threat political correctness poses to free speech rights.