The Courier-Journal is reporting that the future of Thunder Over Louisville is now in question, in part because of the September 11th attacks.
Last year's event lost money, though the Derby Festival Committee isn't saying how much.
So far only one of last year's major sponsors has committed for this year. Add to that security questions.
There's concern over the FAA allowing an air show featuring military air craft.
Organizers say they just can't guarantee a Thunder Over Louisville for next year.