A series of terrorist attacks — including recent bombings in Belgium — has shaken the public’s sense of security as they go about the most mundane tasks of daily life. Images of carnage at subway stations, restaurants, workplaces, concerts and sporting events have flashed across the world’s social media and traditional news outlets. Afterwards, questions inevitably surface about what could have been done to prevent attacks in the first place, while people are encouraged to carry on with their usual lives. But has the shadow of terrorism become part of that “new normal” and, if so, what are the public health implications? This Forum — which took place a week after the 3rd anniversary of the Boston Marathon bombings — asked what makes a society resilient in the face of attacks or perceived threats. Experts in homeland security, psychological resiliency, crisis leadership, and disaster preparedness and response participated. Presented April 25, 2016, in Collaboration with PRI's The World & WGBH. Watch the entire series from The Forum at Harvard T.H. Chan School of Public Health at www.ForumHSPH.org.