MELISSA BLOCK, BYLINE: Former NSA contractor Edward Snowden addressed a large American audience today. He spoke through a video link from Russia where he was given temporary asylum after he leaked thousands of classified NSA documents. The crowd was a friendly one at the South by Southwest Interactive Conference in Austin, Texas. Snowden took some questions and he said technology companies can do more to prevent sweeping surveillance by the U.S. government.
As NPR's Steve Henn reports, the event was moderated by Snowden's attorney.