TED conference featured Edward Snowden via telepresence robot . Computer hacking was cited as a force for good by Keren Elazari , a security researcher at GigaOM . The event was held in the Russian city of St. Petersburg and included a live video feed from Snowden's computer to an audience that watched on giant screens at the convention center. Much of conference focused on the startling gains and ethical issues of technology . Ballroom dancer who lost leg in Boston bombing danced again .
TED conference featured Edward Snowden via telepresence robot . The event was held in the Russian city of St. Petersburg and included a live video feed from Snowden's computer to an audience that watched on giant screens at the convention center. Much of conference focused on the startling gains and ethical issues of technology . Ballroom dancer who lost leg in Boston bombing danced again .