Kennedy overhaul price tag balloons Years of neglect have added millions to the cost of upgrading ship By Rachel Davis Halfway through an extensive nine-month overhaul, the cost to refurbish the Jacksonville-based USS John F. Kennedy has risen significantly over the Navy's initial report. With millions added since work began in January, the maintenance cost for the Kennedy has climbed to about $ 300 million. The Navy says it can easily absorb the price tag, but U.S. Rep. Ander Crenshaw's office said it is beyond the usual estimated 15 percent for an aircraft carrier's repairs. Officials at the Navy's Air...