If you haven’t done so lately, now would be a good time to review your antitrust compliance program. Regulators are making good on their promise to reinvigorate antitrust enforcement, experts say.

For the past year, the Obama Administration and its various antitrust enforcement agencies (principally the Justice Department and the Federal Trade Commission) have warned Corporate America that antitrust issues will come under heightened scrutiny. It appears that they meant it.

“It is a tougher climate,” says Stephen Smith, co-chair of the global antitrust and competition law practice group at Morrison & Foerster. “We're already seeing an increased level of scrutiny ...