Sprint said that it had formally requested the Federal Communications Commission to block the proposed take-over of T-Mobile USA by AT&T, noting the watchdog’s “responsibility to protect consumers and the industry against precisely the kind of anti-competitive market control that will result from this transaction.” In the filing, it argues that concerns about the acquisition “cannot be remedied through divestitures or conditions,” and that “instead of paying Deutsche Telekom US$39 billion, AT&T could invest a fraction of that amount to expand its LTE deployment to nearly all Americans.”