Law enforcement officials monitor surveillance cameras as part of an increased security effort for the Independence Day celebration, the first major public gathering since the Boston Marathon ... more 
Law enforcement officials monitor surveillance cameras as part of an increased security effort for the Independence Day celebration, the first major public gathering since the Boston Marathon bombings, at the Unified Command Center, Wednesday, July 3, 2013, in Boston. The temporary command center combines the control and management of security by local, state and federal law enforcement officals in one location. (AP Photo/Charles Krupa) less 
1 / 3
Associated Press | Photo By Charles Krupa
Wed, Jul 3, 2013 4:44 PM EDT