Delta squared

Delta Air Lines is studying US Airways as a possible acquisition target, people familiar with the matter said. Delta has been assessing a similar move for much-larger American Airlines parent AMR.

Viacom bonus

Viacom CEO Philippe Dauman received a $20 million bonus for the year ended Sept. 30, 2011, a filing revealed. That compares to an $11.25 million bonus he got in the shortened prior fiscal year.

Cable catfight

After Time Warner Cable reported a 44 percent earnings gain, the National Association of Broadcasters called out the cable operator for claiming that demands for higher fees from pay-TV providers are driving up cable rates.

Gupta mole

Lawyers for Rajat Gupta, the former Goldman Sachs and Procter & Gamble director who has denied charges he leaked stock tips to Raj Rajaratnam, are probing whether the hedge-fund manager had a different inside source at the companies.

SAG merger

The Screen Actors Guild national board of directors voted to approve a plan to merge with AFTRA.