On June 3, Chicago Cubs superstar Sammy Sosa hit a routine ground-out that had extraordinary consequences. His bat broke, exposing an illegal, cork-filled center. "Corking" makes a bat lighter, so that a hitter can swing it faster. Bat speed generates power, and Sosa, with 505 career home runs and a record three seasons with 60 or more homers, was assumed to be a premier power hitter. When previous sluggers were caught doctoring their bats, they were publicly humiliated and suspended. In the most recent incident, in 1994, Cleveland Indian Albert Belle was suspended for eight games. But things have gone...