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Obama administration steps up to rein in big business
The Obama administration has taken steps to rein in big businesses this week: New rules issued by the Treasury Department regarding tax loopholes ended a $160 billion deal between Pfizer and Allergan. Meanwhile, the Justice Department has filed an antitrust suit against a proposed oil giant merger, and more may follow. Gwen Ifill talks to Jim Tankersley of The Washington Post for more.
