It was a rare “oops” moment at Google on Wednesday when Senior Competition Counsel Dana Wagner explained why he feels good about working at Google, even after working at the Justice Department.

A few hours earlier, Google confirmed that it had received a formal notice from Justice seeking information on Google’s deal with book publishers, which would make millions of books available on line. That’s on top of two other matters involving Google that are being looked at by U.S. antitrust authorities.

Google convened the press to show that it opens its products to competition instead of protecting them. Google has been giving similar briefings since February to reporters and congressional staffers.

Wagner had nothing new to add about the Justice Department, but he did take a moment to tell reporters that he felt good about working at Google because it takes the high road on competition.

It was the way he put it that required a little massaging.

“There are a lot of companies in which I wouldn’t do this job, right?” he told a dozen or so reporters at a Google office in San Francisco. “I spent seven years in the government. I very much believe in the message and the mission of the Justice Department. I would not be doing this at Halliburton, right?”