News bites: DOJ investigates cable companies

The Justice Department's Antitrust Division is investigating whether cable companies are illegally stifling competition from online video, The Wall Street Journal reports.

A U.K. regulator has re-opened its investigation into Google's collection of data from Wi-Fi networks, CBS News reports.

The New York Times looks at Google's internal documents in the Wi-Fi case.

Reuters reports on a study that concludes Facebook's ads are effective.

Flirting app Skout has banned minors after several children were raped, The New York Times reports.