ANDREA KOPPEL, CNN ANCHOR: Security has been tightened at the Indianapolis Motor Speedway in preparation for today's 87th Annual Indy 500. With more than 300,000 fans expected to be on hand, the job of keeping the speedway secure is a major undertaking.</s>MARTIN SAVIDGE, CNN ANCHOR: And Lindsey Davis of CNN affiliate WTHR has that story.</s>LINDSEY DAVIS, REPORTER, WTHR (voice over): At speeds topping 220 miles per hour race cars have zipped around this track for 87 years, but never under the circumstances of 2003.</s>UNIDENTIFIED MALE: We are, for the first time, in the history of these races under a heightened terrorism alert, the orange level alert status for this weekend. And it has caused us to make some changes.</s>DAVIS: On bike, on foot, on patrol, not only beefed up security but increased changes to ensure safety and encourage the feeling of safety. It is a comprehensive plan crafted to strike a balance between security and convenience.</s>UNIDENTIFIED MALE: Vehicles are prohibited from parking on any street adjacent to the two parks within the town from 9 p.m. to 6 a.m.</s>UNIDENTIFIED MALE: There will be more manpower. That manpower will be uniform, tactically, for the most part. You'll see also additional tactical equipment at various places.</s>DAVIS: While not all of the changes will be noticeable. Perhaps some details are better left unsaid.</s>UNIDENTIFIED MALE: We, and me in particular, are a firm believer in the best security is that which is unannounced and unknown.</s>DAVIS: Security officials say the only thing the public needs to know is...</s>UNIDENTIFIED MALE: It is as secure as any facility you're going to see with the number of people and the nature of the venue itself.</s>DAVIS: So now it is not only touted as the largest single-day crowd in American sports, but according to security officials it is also the most heavily secured weekend in Indianapolis history. (on camera): Lindsey Davis, Channel 13 Eyewitness News.
Security Tightened at Indy 500