As the Federal Trade Commission readied an antitrust investigation of Google's business practices, Dean Roger Dennis discussed the potential challenges faced by government lawyers in "Google Antitrust: Easy To Charge, Hard To Prove," which appeared on CBS online affiliate BNET on June 24. 

Dennis said abuse of market power claims are one of the more subtle issues in antitrust law.

“This is the classic tension in antitrust law," Dennis said. "You want people to compete like the dickens aggressively, but then, if they become highly successful like Google, how much do you pull them back from the strategies that made them successful?”

Dennis also noted that the company could face significant costs to defend itself against such claims.