Cyberwarfare: Is the Best Defense a Good Offense?

Somebody has spent the past five years stealing corporate and government secrets in 14 countries, the biggest coordinated cyber attack discovered so far. One former presidential advisor says, "They're getting our research and development for pennies on the dollar." The most likely culprit is China. But it's not just a question of economics, it's a threat to national security. We hear about the operation now dubbed "Shady RAT," with at least 72 targets, including government agencies, corporations, the International Olympic Committee and the United Nations. What's already been lost? How vulnerable is the US?  Has the government appeared to be passive so far because we're doing it too?