Just curious: of the data that Zuckerberg could collect, what does he not collect? It should be pretty clear that this is not an endorsement of NSA's broad dat

Just curious: of the data that Zuckerberg could collect, what does he not collect? It should be pretty clear that this is not an endorsement of NSA's broad data collection activities. But credible leadership in this area requires that Zuckerberg willfully constrain and limit the activities of his own company first.