AT&T has been involved in a long-running battle with the Federal Trade Commission (FTC). In 2014, the agency sued AT&T for throttling its customers' unlimited mobile data plans while not properly informing them it would be doing so. A few months later, the company claimed that its common carrier status meant it wasn't under the jurisdiction of the FTC and it asked a court to dismiss the agency's suit. In 2015, a judge rejected the carrier's claim, but in 2016, a three-member Ninth Circuit appeals court tossed out that ruling and the FTC's lawsuit saying that AT&T's common carrier status did indeed exempt it from the FTC's regulatory jurisdiction. And that brings us to today. As the Wall Street Journal reports, a federal appeals court has ruled that the FTC can proceed with its lawsuit, rejecting the Ninth Circuit court's earlier decision.