PBS NewsHour

Mining Online History for What May Have Radicalized Brothers

Clip: 04/24/2013 | 13m 14s

In Boston, a memorial service honored a police officer killed during the manhunt for the Tsarnaev brothers, while new information was released about the bombing suspects. Judy Woodruff talks with Jerrold M. Post of the George Washington University and Jessica Stern of Harvard University about how people turn to radical violence.

Aired: 04/24/13

Rating: NR

Problems Playing Video?