Meanwhile a retired AT&T telecommunications technician named Mark Klein has reportedly given a sworn statement that AT&T has been working with the National Security Agency to spy on Americans. Klein gave the statement as part of a lawsuit by the Electronic Frontier Foundation against several major telecommunications companies. Klein reportedly also disclosed several internal AT&T documents that showed AT&T put a “dragnet surveillance” in place to help the NSA. Klein’s statement and the documents have been put under seal. According to attorneys at EFF, the leaked AT&T documents supports the group’s claim that AT&T is diverting Internet traffic into the hands of the NSA wholesale, in violation of federal wiretapping laws and the Fourth Amendment. EFF’s staff attorney Kurt Opsahl said “Mark Klein is a true American hero. He has bravely come forward with information critical for proving AT&T’s involvement with the government’s invasive surveillance program.”