As Londoners paused to remember victims on the 10th anniversary of the 7/7 transit bombings, experts warned that terrorism remains a threat.
Alastair Jamieson and Michele Neubert, NBC News
Tue, 07/07/2015 - 2:56am
As Londoners paused to remember victims on the 10th anniversary of the 7/7 transit bombings, experts warned that terrorism remains a threat.