jeopardized national security. the store -- stories we reported didn't do that. >> what do you say when the government needs to act in secret at times? there is legitimate reasons and people that want to attack this country. >> nobody doubts that the government has the right to keep some secrets and we are keeping some secrets. we're not disclosing the technical means by which the nsa spies on people to enable other countries to replicate or evade it. we're not disclosing the names of people at whom the spying is directed, but what the government doesn't have the right to do is implement incredibly consequence l policies that affect the world we live and the country we are without credibility. >> snowden said the nsa had been hacking computers in china since 200 a9 and showed the newspaper