ATT and Verizon have responded to the FCC's letters that argued the way the two companies handle the practice of exempting their own video apps from data caps on customers' smartphones can hurt competition and consumers. The Verge reports: The companies defended the programs, which allow select data sources to not count toward customers' data plans through a process known as zero-rating. Although it did not explicitly ban them in new net neutrality rules laid out last year, the FCC has been critical of such programs, arguing that they can be used to hurt competition by unfairly favoring some data, creating an uneven playing field for businesses. In a noticeably pointed response, ATT takes a similar line to the position it's held all along: programs like Data Free TV, which allows customers to use data from ATT-owned DirecTV without it counting toward a plan, are not anticompetitive, but are simply a perk consumers enjoy. Verizon, in its response, makes similar arguments defending its FreeBee data program, which allows data from Verizon-owned Go90 to not count toward a data plan. "FreeBee data provides tangible benefits to consumers by increasing the amount of what they can do and watch online, at no cost to them," the company's response says.