College senior Dan Swann stepped on stage, approached the laptop, and spoke to Russia. "Hello, Mr. Snowden. It's an honor."
Behind him, the Johns Hopkins University auditorium was packed, some 1,300 who came to hear the former government contractor speak live from across the world.
"What can future engineers do," asked Swann, a computer-science major from Annapolis, "to be sure the products they work on cannot be used to violate civil liberties?"
Edward Snowden paused. "That's a good one."
Hopkins students spent months arranging the live video conference Wednesday night with Snowden.
In 2013, he leaked documents...