Snowden also pointed to attacks in Spain, London and Boston.
Civil libertarians hope to force changes when part of the Patriot Act sunsets in June.
Despite its best efforts, the NSA can't crack all encryption methods.
Spies and hackers could find members' communications "completely defenseless," he warns.
“I feel profoundly let down by our elected officials," Laura Poitras said.
A new documentary examines the NSA leaker's life in exile.
The leaker was honored for his “courage and skill" in exposing the NSA's operations.
Oliver Stone is directing a movie based on a book by one of Snowden's lawyers.
The United States is taking on more risk because of the leaks, report argues.
Snowden did not ask for political asylum in Russia, his lawyer said.
The edits came from the same IP address blocked by Wikipedia last month.
The information taken by Snowden is getting less useful over time, the agency's No. 2 said.
The document comes as David Cameron is expected to press Obama on cyber defenses.
“It is important to highlight that we really started this trend," Snowden said.
Even Edward Snowden seems inclined to extend benefit of the doubt over language.
Edward Snowden said his surveillance documents were not the biggest revelations.
Charged with espionage, Snowden tried to negotiate standing trial with U.S. government.
New documents detail the key role the order plays in authorizing NSA’s operations.
Americans have a renewed fear of Islamic terrorism, but a disconnect regarding domestic efforts to...
Like iPhones, new Android phones will prevent even police with a warrant from getting data.
The U.S. program can “automatically fire back" against cyber threats, the NSA leaker said.
The Office of the Director of National Intelligence declined to comment on the CNN report.
Snowden's lawyer said he expected an answer "today or tomorrow."
Software should be a means of "defending our freedom," Snowden said.