How Safe Are We? Homeland Security Since 9/11, with Janet Napolitano

"Climate, cyber, then mass gun violence, sometimes motivated by terrorist ideology--and the ideology can most frequently be tied to far-right-wing extremism, sometimes tied to no ideology at all, sometimes tied to pathology. Those three things I think are the real risks that the Department [of Homeland Security] really should be focused on. In contrast, what is not a real risk is the conditions of the Southwest border."