The U.S. Justice Department has opened a formal antitrust investigation into a deal between Google and Yahoo to share some advertising revenue, The Washington Post reported on Wednesday.

The U.S. Justice Department has opened a formal antitrust investigation into a deal between Google and Yahoo to share some advertising revenue, The Washington Post reported on Wednesday.

The U.S. Justice Department has opened a formal antitrust investigation into a deal between Google and Yahoo to share some advertising revenue, The Washington Post reported on Wednesday.

The U.S. Justice Department has opened a formal antitrust investigation into a deal between Google and Yahoo to share some advertising revenue, The Washington Post reported on Wednesday.

WASHINGTON (Reuters) - Google Inc and Yahoo Inc face intense U.S. Justice Department scrutiny of their deal to share some advertising revenue, and the heat will likely increase under a new administration, antitrust experts said.