1.   American Express Co. said it filed suit against Visa International Inc. with Chilean antitrust authorities.

2.   An Auchan takeover of Docks will face scrutiny by French antitrust authorities, though.

3.   Antitrust authorities are another barrier.

4.   Antitrust authorities said they will investigate a planned digital pay-TV alliance between Bertelsmann AG and CLT of Luxembourg as a flurry of new partnerships change the European pay-TV landscape.

5.   Antitrust lawyers said the transaction is almost certain to get a long, close look from federal antitrust authorities.

6.   Any new deal involving regional carriers would also face scrutiny by antitrust authorities.

7.   Antitrust authorities there in the past have frowned upon further consolidation among large accounting firms.

8.   As the debate over free access continues, the Internet service providers association said it was considering taking legal action with government antitrust authorities against the banks.

9.   As with all large mergers, the proposed combination of Lockheed and Martin Marietta is subject to the approval of federal antitrust authorities.

10.   BASF said U.S. antitrust authorities have approved the acquisition, which is expected to be completed by the end of the year.