FTC, here.
"I don’t mean to criticize the FTC in pointing this out—I think former Commissioner Jones Harbour was incredibly visionary and ahead of her time. The FTC was just being faithful to our existing practices in merger review. But clearly there was something going on that we did not catch, given what we know about the ad tech market today. So I think it’s a real lesson learned that shows that we antitrust enforcers need to continually re-examine and fine tune our approach. The goal of our merger guideline revision project is to do just that and enable us to more effectively use our tools so we can make better predictions about the future effects of proposed mergers."