Sparking an important debate in the 7th U.S. Circuit Court of Appeals on whether the disparate-impact section of the Age Discrimination in Employment Act protects job applicants — not just current employees — Dale F. Kleber sued CareFusion Corp. alleging he faced an unlawful barrier in 2014 when he was 58 years old and applied for a position as in-house counsel: CareFusion’s job posting said applicants must have “3 to 7 years (no more than 7 years) of relevant legal experience.”The seven-year …