Google last year agreed to part with $500 million to settle a U.S. Department of Justice probe into allegations that it connived at online ads from rogue pharmacies. While the search engine giant expressed regret for allowing these ads, it excused itself from further commenting on the issue, absurdly enough, due to the “extensive coverage this settlement has already received.” With no more details forthcoming, it seemed like the end of the whole episode. But the Walls Street Journal has now published a new report, detailing a 2009 sting operation that helped expose Google’s collusion with rogue online pharmacies.