Kentucky Derby: Officials Increase Security Measures

Authorities boost security for Kentucky Derby in wake of tragic marathon bombing.
2:16 | 05/04/13

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Transcript for Kentucky Derby: Officials Increase Security Measures
Now to the high security today at the annual run for the roses. The kentucky derby in the wake of the boston marathon many booing. Security increased to protect an expected crowd of 100,000 people and not the only major sporting event where police are clamping down in the name of safety. Abc's john schriffen is here with that story. This morning kentucky derby fans are arriving to a noticeably different atmosphere among churchill downs' race and wild fashion. Race officials say this year the most exciting two minutes in sports will be among the most secure. We want to ensure everyone has a safe and fun time at the track. Reporter: Spectators now have to pay close attention to what's allowed inside. So what's in and what's out? Cans and glass bottles all a strict no. Not to worry, you can still wear your oversized derby hat and bring a camera for the photo finish as long as it doesn't have a detachable lens. The question now, is it working? On thursday according to the arrest report a man was able to sneak into millionaire's row at churchill downs without a ticket. The 44-year-old then allegedly sat at a table threatening to shoot people. He was taken into custody. No weapon was found. I don't know if I would be here today if I heard that. Reporter: It's happening across the sports world, for the nba playoffs in a statement to abc news, the league says safety is always a priority writing "we regularly practice a wide range of state-of-the-art security measures in all of our arenas." In new york for the long island marathon authorities will have radiation detectors and canines along the course to sniff out any potential threats. After boston, these big events cannot even begin to roll the dice and say, well, maybe we can skimp here or there. They have to go all-in. Reporter: One thing they're not taking any chances with at the kentucky derby this morning, bags, large purses and backpacks, both banned. Now, former fbi profiler brad garrett says these additional security measures serve two purposes, psychologically they calm the public's fears, just seeing an increased presence. Also it could deter anyone from trying to do harm because, dan, bianna, they'll know you'll have to work harder to do it.

This transcript has been automatically generated and may not be 100% accurate.

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