An FBI affidavit alleges that:
■ Road contractor Leonard Lawson bribed state highway engineer James Rummage to get confidential cost estimates of road projects.
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■ Rummage sometimes gave the secret estimates to Lawson, but sometimes gave them to former Transportation Cabinet Secretary Bill Nighbert.
■ Lawson might have tried to repay Nighbert by funneling money through an Eastern Kentucky corporation.