Like most 6-year-olds, Lucas Avant has few fears, but his parents worry more than most. Lucas has no health insurance. At 9 months old, doctors found he had a heart ailment.

They say he's now perfectly healthy, reports CBS News correspondent Ben Tracy, but he's been denied by six insurance companies because of his pre-existing condition.

"There's no reason why a healthy child should be denied health insurance that his family can pay for," says Lucas' father Jason Avant. "That seems absurd."

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