Ferchi

PHOTO (Insert): President Barack Obama delivers remarks on renewable energy at Ohio State University in Columbus, Ohio, March 22, 2012. REUTERS/Jason ReedAs one of the world's top cops on the antitrust beat, the U.S. has long led the fight to curtail price-fixing, collusion, and other anticompetitive behavior in global commerce. And the Justice Department's antitrust division has wielded an especially big club of late.