Commentary: Sexual violence and harassment are men’s issues. And they’re leadership issues.

Hollywood, USA Gymnastics, Penn State football and the Roman Catholic Church are a few examples, among others, where sexual harassment, assault and violence left their ugly marks.Over the past few years, we’ve seen institutions where men have failed at their leadership and a culture of sexual misconduct — to put it mildly — became pervasive. The perpetrators are men and the people who could have stopped it are, by and large, men in positions of leadership.But they didn’t