NYPD amp up security before NYC's "four-mile" race

New York City Police were amping up security in Central Park late Saturday night in preparation for Sunday's "four-mile" run, Army Radio reported.
The security measures include additional police presence as well as placing 100 mobile video cameras around the park which can track suspicious activity. Video cameras played a large part in tracking down the Boston Marathon bombing suspects who were caught on camera carrying bags moments before the blasts occurred.
A further precaution was taken when police and race organizers directed participants not to bring bags with them to the race.
"We asked that they not bring any backpacks, bags, napsacks or anything like that and certainly if they do, to not leave them unattended," Asbusy Park Police Department Detective Captain Anthony Salerno said talking to a CBS reporter.