Indianapolis

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A fan's cooler is inspected as he makes his way though a security checkpoint to enter the Indianapolis Motor Speedway before the start of the 98th running of the Indianapolis 500 IndyCar auto race in Indianapolis, Sunday, May 25, 2014. (AP Photo/AJ Mast)

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Fans arriving for the Indianapolis 500 IndyCar auto race walk across the Yard of Bricks extension of the start/finish line before the start of the race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 25, 2014. The 98th running of the Indianapolis 500 was Sunday. (AP Photo/AJ Mast)

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Fans make their way though a security checkpoint as they enter the Indianapolis Motor Speedway before the start of the 98th running of the Indianapolis 500 IndyCar auto race in Indianapolis, Sunday, May 25, 2014. (AP Photo/AJ Mast)

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Dallas Mavericks owner Mark Cuban waves the green flag to start the 98th running of the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 25, 2014. (AP Photo/Michael Conroy)

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Jim Nabors waves to fans after singing "(Back Home Again in) Indiana" for the final time before the start of the 98th running of the Indianapolis 500 IndyCar auto race at the Indianapolis Motor Speedway in Indianapolis, Sunday, May 25, 2014. (AP Photo/Michael Conroy)