ST. LOUIS (KSDK) - The attack at the Boston Marathon is hitting hard for cities across the country that host their own marathons.

Nancy Lieberman, president of the Go! St. Louis marathon joined NewsChannel 5 at 5 p.m. Tuesday to talk about how something like this can affect the running community.

Click the video player above to hear how this will change how the organization will plan events in the future.

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