The exiled journalist refuses to say whether he'd fight 100 duck-sized James Clappers.
Couldn't make it to SXSW? Watch Snowden speak live to festival-goers via video chat here.
Currently living in exile in the Ecuadorian embessy in London, Julian Assange addressed SXSW via Skype.
Russia uses recent terrorism scares to censor Internet
"Strong encryption protocols," Scott Busby said, are "critical for an Internet that is truly open to all."
"The largest operation against file sharing and torrents known in Italy."