The arrest of high-profile figures in the NBA in a sweeping federal gambling investigation has sent a clear warning: legalized sports betting makes it more likely to corrupt sporting competition. Chauncy Billups and Terry Rozier were arrested in separate operations that allegedly involved misleading game-performance bets and Mafia-linked poker schemes. NBA Commissioner Adam Silver said he was deeply disturbed by the news. This is because if the integrity of professional games is compromised, public trust is lost. If the games are fixed by back room schemes, then why watch and follow your team? Legal betting on pro-sports may allowed, but it makes players, coaches, and even the refs vulnerable to corruption. And when the outcome of competition is fixed, why should anyone care?