I guess the cookers would be filled up with black powder, Pyrodex, or some other gunpowder, and put in the bottom of the duffel bag, then the ball bearing piled in loosely around it? I can't see the bearing being put inside the containment vessel.
Law enforcement officials could have something very different on their hands as they investigate the dual bomb blasts that struck the Boston Marathon finish line today: a potential abundance of photo and video evidence from the public.
Government surveillance, while growing, still misses more than it catches. But events with thousands of spectators offer the potential for a detailed crowdsourced record of what happened.
This public panopticon is changing how we see the world. February's Russian meteor was captured by many dash-cams mounted in Russian cars, but in this case the event is of profound interest to law enforcement officials, not just scientists.
The Boston Police Department has begun requesting records about the explosions, which killed two people and injured dozens.
"Boston Police looking for video of the finish line," said Cheryl Fiandaca, chief of the department's public information bureau. However, in a sign of the difficulties of such work, the Boston city government's Web site was unresponsive today after the blast....
