( CNN ) -- American intelligence leaker Edward Snowden has more damaging information that could be a `` nightmare '' for the U.S. government , a journalist who first published his documents said . Glenn Greenwald of the Guardian told an Argentine newspaper , La Nacion , that releasing more information to hurt the United States is not Snowden 's goal . However , he said , Snowden has a `` large number '' of documents about software people use `` without consciously agreeing to surrender their rights to privacy . '' Snowden has given copies of the papers to several people , Greenwald told the paper , according to an English translation . `` The U.S. government should be on their knees every day praying that nothing happens to Snowden , because if something happens , all information will be revealed and that would be their worst nightmare , '' he said . Others have suggested this before . Kristinn Hrafnsson , a WikiLeaks spokesman , said last month that other secrets may be revealed . `` There is more to come , '' he said . What are the odds of a Snowden getaway ? Snowden is a former computer technician for U.S. defense contractor Booz Allen Hamilton . In June , he gave Greenwald and colleague Ewen MacAskill a 12-minute video interview on why he provided the Guardian the classified documents about U.S. surveillance programs . Following his revelation , he fled to Hong Kong , then headed to Russia , where he is in political limbo in the transit area of a Moscow airport . He has requested asylum from Russia while he awaits safe passage to Latin America , according to WikiLeaks . No application from Snowden has yet been received , the head of the Russian Federal Migration Service , Konstantin Romodanovsky , told the nation 's news agency , Interfax . The presidents of Venezuela and Bolivia have said their countries would give him asylum , and Nicaragua 's president said he would offer it `` if circumstances permit . '' Snowden faces espionage charges in the United States . He met with human rights activists and lawyers Friday at the airport . It was his first public appearance since he left Hong Kong on June 23 . Merkel wants EU data protection pact . `` I announce today my formal acceptance of all offers of support or asylum I have been extended and all others that may be offered in the future , '' he said in a statement . `` As we have seen , however , some governments in Western European and North American states have demonstrated a willingness to act outside the law , and this behavior persists today . This unlawful threat makes it impossible for me to travel to Latin America and enjoy the asylum granted there in accordance with our shared rights . '' In his remarks , Snowden also sought to defend his actions in leaking documents to the media that exposed U.S. mass surveillance programs . `` I did what I believed right and began a campaign to correct this wrongdoing . I did not seek to enrich myself . I did not seek to sell US secrets . I did not partner with any foreign government to guarantee my safety . Instead , I took what I knew to the public , so what affects all of us can be discussed by all of us in the light of day , and I asked the world for justice , '' he said . `` That moral decision to tell the public about spying that affects all of us has been costly , but it was the right thing to do and I have no regrets . '' The United States has reached out to the Russians regarding Snowden 's meeting with human rights groups , two senior State Department officials told CNN . Is Snowden worth the risk ? Latin America weighs pros and cons . CNN 's Marilia Brocchetto contributed to this report .
Glenn Greenwald was one of the journalists who broke the original story . He says Edward Snowden has other documents . Score: 7