Is FTC Circling its lawyers on the Google-AdMob Deal?

According to a story by Thomas Catan and Jessica E. Vascellaro of The Wall Street Journal, "The Federal Trade Commission appears to be laying the groundwork for an antitrust challenge to Google Inc.'s proposed purchase of mobile-advertising company AdMob."

According to their story, "Regulator Concerned By Google Ad Deal," the FTC has assembled an internal litigation team to prepare for a possible effort to block the deal. The FTC also sent letters to AdMob's competitors asking them to testify in sworn statements about the potential impact of the purchase. In addition, the agency has briefed Congress on its concerns about the deal.

Their story cites "people familiar with the matter" and "several other people with knowledge of the effort." My question is why would unnamed sources leak this information to The Wall Street Journal?

Obviously, it isn't to see their name in the papers. Inquiring minds want to know.

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