Runners arrive to take part in the New York City Marathon on Staten Island, New York November 3, 2013. In addition to cheering supporters, runners in this Sunday's New York City Marathon will also be ... more 
Runners arrive to take part in the New York City Marathon on Staten Island, New York November 3, 2013. In addition to cheering supporters, runners in this Sunday's New York City Marathon will also be monitored by bomb-sniffing dogs, police scuba divers and surveillance helicopters to prevent an attack similar to the one at the Boston race earlier this year. REUTERS/Eduardo Munoz (UNITED STATES - Tags: SPORT ATHLETICS) less 
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Reuters | Photo By EDUARDO MUNOZ / REUTERS
Sun, Nov 3, 2013 9:58 AM EST