"I stand with Survivors Empowered and other organizations fighting for gun reform. And I've been a strong supporter of controversial activist strategies over the past 50 years. But we need to be effective so that we change the country for the better without curtailing the legitimate rights of others. As I have learned the hard way, social change is exceedingly slow and cautious, and moves at all only because we continually prod it to do so. We all seek peace, but as W.B. Yeats wrote, "Peace comes dropping slow.""