AT&T is facing blowback from a decision it made back in 2011 to throttle some of its unlimited data customers today in the form of a new lawsuit from the Federal Trade Commission (FTC). The government agency claims AT&T deceptively throttled customer data, while the carrier denies breaking any laws. AT&T hasn’t officially offered an unlimited data plan for a a few years now, but a decent number of the network’s customers are still holding onto their old contracts.