So, they don't know if anyone else has take anything either? Snowden could in fact merely be the one they know about. And on the face of it, Snowden has risked

So, they don't know if anyone else has take anything either? Snowden could in fact merely be the one they know about. And on the face of it, Snowden has risked everything to let the world know whats going on, an act of human patriotism, where as others unknown may well just sell the data to actual enemies. Maybe Snowden's error is doing the right thing as opposed to making a few Renminbi.