By Faith Karimi, CNN
(CNN) — After a one-year hiatus, the New York City Marathon returns Sunday with a different priority: security.
Discussions about running times and numbers were put in the back burner. Officials shifted focus to numbers of a different kind: security cameras, bomb-sniffing dogs, baggage screenings and surveillance helicopters.
The 47,000 runners will race through five boroughs for the first time since the Boston Marathon bombing, which left three people dead and more than 260 injured in April.
Major cities revamped security in the aftermath, and the New York City Marathon followed suit.
Bomb-sniffing dogs and scuba divers will scan bridges and shorelines while counterterrorism officers will escort ferries carrying runners.
“Prior to taking their starting positions on Staten Island, runners will be screened…
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