People walk by a surveillance camera along a street in the Financial District on April 24, 2013 in New York City. Following the twin bombings at the Boston Marathon, a new focus has been placed on surveillance cameras, which have become common in most metropolitan centers across America. The FBI used footage from surveillance cameras to identify the bombing suspects, which eventually led to their capture. Despite the security role of the cameras in law enforcement, numerous civic groups and privacy advocates are still opposed to the use of surveillance cameras in public spaces.