On Dec. 2, law enforcement personnel investigated a mass shooting at a social services center in San Bernardino, Calif.
On Dec. 2, law enforcement personnel investigated a mass shooting at a social services center in San Bernardino, Calif. Chris Carlson The Associated Press
On Dec. 2, law enforcement personnel investigated a mass shooting at a social services center in San Bernardino, Calif. Chris Carlson The Associated Press

David Brooks: The age of small, random terror poses new risks

January 04, 2016 9:00 AM